Linux

I think a script with apt/pacman/dnf etc., flatpak update can do the job as well?

IMO its against the unix vision to extend apt to manage flatpak as well.

No need to overcomplicate things, just write a small shell script or even just an alias. I use this daily:

alias get-rekt="sudo apt update && sudo apt upgrade -y && sudo apt autoremove -y && flatpak update -y && flatpak remove --unused --delete-data -y"

adjust accordingly for Fedora and/or snaps. Obviously doesn't work for appimages or manually compiled stuff which should be a last resort if there's no other sensible way to install stuff.

edit: voyager shat the bed with the code block but you get the point

I use BAUH as a GUI "update everything in one click" does repos, aur, flatpak, snaps, appimages. Paru is CLI option for repo, aur and flatpak. I dunno if it does snaps never checked.

100% agree with you OP.

I use very minimal software and usually don't care about Flatpak

emerge -uDN @world

...and head to bed for me.

I'm using MX Linux and don't use any flatpak or snaps, only good old debs

I use one command to upgrade the whole system: paru one one system and yay on the other laptop.

Fedora updates flatpaks automatically, system updates too, but you need to reboot. Which Fedora version do you use?

Nah, I don't miss them really, flatpaks are much more convenient and for me fedora kinda just updates itself automatically.

Also, pretty much all graphical app stores on linux support flatpaks and the distro's default package manager, so you can update everything from there...

yeah like other people have rec'd, I just wrote a script for installing/removing/upgrading/searching all the package managers I have. this was used as a tongue in cheek jab and has never truly been a brag.

Snap forces updates, and you cannot disable them. So if you use snaps, I guess you can stop worrying and keep going with your usual apt routine.

What about pkcon? I haven't used it in particular, but packagekit based GUIs work pretty well in my experience, and then it supports flatpak/snap/apt/kde addons/etc in one interface, which is better than it was originally.

Perhaps a small bash script to iterate through all of the package delivery mechanisms' for updating everything?

I get 99% of my packages via nix and the other 1% through appimages which I can put anywhere I like on my disk

If you want a single command, consider topgrade. Not sure if it supports Flatpak and Snaps yet, as I do not use those (yet).