I can accept that alt-tab is a preference if you want to use alt-tab and alt-`. It's heresy to prefer alt-`, but whatever -the vim-spaces-only(but automated code formatters are best and I dont care what they use)-alt-tabbers will eventually win out.

But on multiple desktops if you alt-tab to the previous application again, it only brings up the application windows in the current screen instead of bringing you to the last window you used (on another screen). Wrong! Broken! Sad!

Also, on mac alt-tab raises ALL the application windows. So if you have shed loads of terminal windows or loads of browser windows open, then alt-tab brings them all to the front. This is definitely broken since it stops common workflows like copying between windows; or finding some text that you want to type into a terminal and then alt tabbing to the terminal only to have the screen covered in terminal windows. SAD.

Mac is low energy (That's the reason I think I have it for a laptop).

I find separate inter-app cycling (cmd-tab) and intra-app cycling (cmd-`) much superior, faster, giving you better control.

However, agreed that on a Mac with multiple "spaces" it's completely broken.

Compared to a optimized Arch, or even a non overloaded windows 10 mac never appeared to me very energy friendly.