Yeah, I only buy good tools now. I had a similar experience sawing off some old Ikea shelves to put up as standalone shelves in the kitchen - tried using a handsaw and it was terrible, used a multitool and it was amazing. And when I was in my twenties and bought my first flat, a hammer drill for putting shelves up on my walls -- the first time in my life I was able to do this as previously I had always rented and was not permitted under the tenancy agreements. That drill opened up whole new world, it was incredible. Up there among the best purchases I ever made, and as I bought one that a "pro" might use (Makita cordless) with loads of bits, it's still in semi-regular use now, over a decade later.
I don't have a circular saw or an impact driver but they're both on the list. I saw a YouTube video from The Honest Carpenter that had a really insightful line on this: all woodworking is just taking large bits of wood and making smaller bits of wood out of them, and then taking small bits of wood and joining them together to make a different large wooden thing. So the only two tools you really need are a circular saw and an impact driver. I don't have a circular saw or an impact driver yet - just a multitool and a hammer drill - but I'm always looking for them to come on sale/refurb/second hand so I can add them to my toolkit.
Oh and a set of clamps. So many things are so much easier with clamps!