The Steam Deck 512GB. It gave me a realistic pathway to replay classic games I love, while bringing AAA titles to a playable state on the go. As someone who travels pretty regularly both for work and personally, having a portable way to play games like Cyberpunk 2077, Stray, etc. as well as run emulators for Skies of Arcadia, Chrono Trigger, et al was a huge step up. The ergonomics are great, it gets fair battery life, and it works exceptionally well docked in Desktop Mode. The Steam Deck made it possible for me to reasonably game again after having missed having a proper gaming PC for a number of years.
M1 Macbook Pro 14". I don't know how to entirely put it into words, but this recaptured what I loved about my MBP from 2015, and did it better in every way. I'm truly impressed with the engineering and the form factor, it just "feels right", in a way that my 2017 and 2019 MBPs do not. A big piece of this is a return to the prior keyboard design, getting rid of the unnecessary touch bar, and bringing back useful features like the SD card slot (this replaced my 2015 MBP as my carry along during travel for photography). And, maybe the surprise for me above all else, is it has EXCELLENT battery life. Realistically using it for 11-14 hours on a single charge, and it's been great at playing Mac games off Steam.
IV-Works AV3 Custom Ergonomic Keyboard (AV4 is now available). Getting ergonomics right for my home office has been literally life changing. On the previous thread I mentioned the Evoluent vertical mouse, and with this keyboard and that mouse, I was able to pretty much solve my thumb and wrist pain without requiring surgery. I bought into both after finally going to see a specialist about my hands and wrists, and after an adjustment period my typing speed is back to what it was beforehand, and I was able to avoid the recommended surgery. I essentially have no pain anymore, and I still get to use the heavy mechanical switches I'm used to.