I was an early user of Moom on MacOS and haven’t looked back from the dialed in window management.
The other app that I can’t use a Mac without is Alfred. There’s other options popping up but Alfred really has a head start on many small things.
I still try to go Linux fill time each year and it’s there for development, but not for becoming an invisible computer like the Mac can become to get into flow so much quicker as long as the nannies and notifications are disabled.
I have held off on a new Mac since my i9 15” mbp but it looks like the m2 max 14” is a good candidate minus the smaller fans