What OS is the best based on each Mac Generation

I'm genuinely interested in all sorts of mac

I did work in a place where we repair old macs quite frequently and installing OSX El Capitan that can't support browsers and stuff just makes them being sold for nothing

So I would like to make a list with you guys' experience to have a general idea of which OS we should install for each Mac

For example, my Mid-2012 MacBook Pro 13" upgraded to 16GB & SSD runs Ventura smoothly and I'm pretty sure Sonoma would work just fine. Sequoia was a bit laggy for my experience

Thanks a lot to everyone who gives their time to comment on his experience not just for me, but for anyone wanting to revive an old machine.

Author: @Appropriate-Point882