This was such a big pain for me when switching back to windows / Linux. I’m not sure why it’s not talked about more. 4 modifiers is much better if you are a keyboard “power user” but don’t want to spend days crafting and maintaining a bespoke input system.
A more general point: you can be a “power user” and not have the time to learn about the absurd stack of technologies that is a Linux DE. You may even be a “power user” and not have a job / education related to computers! Shocking!
I'm a dad, I'm doing home improvement stuff, I have cat litter to scoop, I have a day job. I have like 15 minutes at a time to power use my personal computer. I spend it programming. Everything I need to do between opening the lid and typing programs is an affront.