Linux

I used Manjaro and Ubuntu for a while before settling on Garuda.

Garuda is Arch based* (like SteamOS) and offers the latest software immediately, but also has a built in snapshot system that allows you to roll back your system if any of the updates break something (Snapper automatically makes a snapshot of your system before it updates).
There are GUI apps for editing system settings (which isn't a thing on all distros! sometimes you're just editing a text config file), as well as a gaming app specific installer (Wine, Proton, Lutris, Steam, Retroarch etc)
I've used Teams, but never attempted Office365 so I can't help you there, but it sounds like you can access it via a web interface.
I code using VS Codium, the open source branch of VS Code, but I'm not sure that Visual Studio is working on Linux. There are also Microsoft specific extensions in the VS Code Extension library that won't work without third party workarounds.

Since you're already familiar with virtualbox you can spin up some of the recommended distros. and see which one you like best.
I tried Endeavour, but found that it was Garuda with fewer of the helper apps that I was used to.
Coming from MacOS/Windows, I liked having the extra apps and pre-built functionality.
I could absolutely customize it to be whatever I wanted, and some people prefer more bare-bones distros, but I found Garuda was what I was looking for straight out of the box. (except for the slightly garish theme).
I haven't seen anyone recommend Nobara yet, but that's one you should check out if gaming is a concern.

If you haven't checked out KVM/QEMU and virt-manager, I'd strongly recommend giving them a look. I set up Windows 10 and MacOS VMs that launch from icons on my dock any time I want to use Mac or Windows. If they were on discrete disks then I could get near native performance.
If you have more than one drive in your machine you don't even need to give up Mac or Win to go Linux.
I set it up on a laptop, so I didn't have a discrete disk or GPU, which impacted performance, but my plan for my desktop is to run Linux on the bare metal and use QEMU for any Mac or Microsoft products.

*I use Arch, btw

Linux Mint is great, Ubuntu is ok, I'd stay away from Manjaro. The Manjaro team is known for selectively delaying updates, which can break systems sometimes.

Teams and VirtualBox both work fine on Linux, though personally I'd recommend just using teams in the browser vs downloading the app from Microsoft.

Most games work great on Linux! A really good resource for seeing if the game you want to play works is ProtonDB. There's a compatibility rating for almost every game on Steam there (even if you didn't buy the game on Steam, ratings for the Steam version should be fairly accurate). For non-steam games, WineHQ AppDB is another good resource, though I've found it can sometimes be a bit out of date when it comes to compatibility (in a good way, it'll say games are broken sometimes when they actually work fine).

For Epic, you can use the Heroic Games Launcher. It's an open-source launcher for Epic and GOG games. It'll automatically handle setting up a wine prefix for you and everything, so all you should need to do is click "install" and then "play" once it's done. Uplay is a bit more difficult, since there's no Linux-native launcher, but it's not impossible. I believe Lutris has an installer for it, you can definitely find instructions on how to do this online.

I'm not gonna lie and say that gaming on Linux is as easy as it is on Windows, especially for a beginner. These games and apps were designed for use on Windows, and if any consideration was given for Linux, it was an afterthought. However, it's completely possible for many people to never have to use Windows for gaming. It's so, sooooo much better than it was just a few years ago, and it's only going to improve from here. You might struggle a bit as a beginner, but with time you'll learn more about how all this stuff works and eventually, if a game doesn't work, in most cases you'll be able to figure out why and fix it.

Personally, I can't remember the last time I just wasn't able to get a game running on Linux at all. There was like, one instance where cutscenes didn't work, that's the worst case I've ever encountered. I mostly stick to single-player games, but still.

Clear Linux looks very performant which is interesting for gaming. And it provides choice between DEs !

I second everyone else dont use manjaro. As someone who was in a similar position to you, I started with mint just to toy around with it. Personally I'd recommended fedora, or Ubuntu (fedora over Ubuntu). I didnt stick with mint long though, eventually I just took the deep dive and installed arch as my daily driver which I wouldnt recommend unless you have time and energy to tinker with what us broken. If your uncomfortable with using Linux full time try duel booting that way you have windows as a back up system in case you bork something. If you have any questions feel free to DM me. And remember flatpak is the linux beginners best friend.