Most things in Linux too - all DEs I have tried have lots of keyboard shortcuts and so do a lot of applications.
The problem is that they are less discoverable and you need to make and effort to get used to using them instead of point and click.
They used to be discoverable with mnemonics (underlined letters) but those have been dead nearly thirty years…
these still exist on windows though? you just hold alt
Only works for like 20% of the menus though. I remember alt shortcuts reliably being on every single menu in early Windows (95? ME? XP?)
They died when people stopped using native toolkits and started making everything an electron app.
Economics be damned, if you're going to make a native app, use the OS provided toolkits.
GTK (and QT I do believe) also support this on GNU/Linux.
I wouldn't say they're dead, just more hidden (e.g. GTK4 only shows them when you hold Alt). AFAIK most toolkits still support them, but app developers also have to actually define them.