I also use Everything. But I'm not sure how Windows Search not being the best has much to do with the system's overall RAM usage.

Explorer works fine for me but File Pilot does look cool. I'll give it a try. (Good luck replacing Finder on Mac, is that even possible?)

I only use Windows for desktop and if I was clean installing I'd probably switch it to Linux. My laptop is Linux then I share a macOS system with my partner which I occasionally use for things that require Mac.

I wouldn't say I suffer at all with Windows. It's fine. It runs, it performs well, it's stable. I can't speak to other people who have different experiences. I usually assume they're using some kind of OEM abomination while I used the plain ISO downloaded from Microsoft, and I've already gone through the ~10 minutes of effort to turn off the annoying stuff.

I sold my personal Mac and switched to Linux on Framework 13" after Liquid Glass came out. It was almost as jarring and poorly executed as Windows 8. Well, okay, maybe that's going too far.

(The other problem with my MacBook was the tiny amount of storage was growing difficult to work with, much easier to toss a 2TB SSD into a Framework and finally be done with worrying about storage)