Facebook and Instagram, sure. But plenty of people are more or less forced to keep WhatsApp either because of people they want to be able to message that refuse to use anything else, or perhaps even because they need to be in some WhatsApp groups e. g. for work.
Communication platforms aren't like web browsers or operating systems where you can switch at will to whatever else works for you, you're more or less reliant on everyone you know also making the switch.
Honestly I like Windows 11 better than Windows 10. I mean I don't like or use either one, but if I had to I'd go with 11 (with debloat script, Powertoys, WSL2 and blocking telemetry with DNS as much as possible)
This is subjective of course but I prefer both the visual and sound theme of Win11 (I despised Win10 in both regards). Plus it has some additional nice qol features like, I think, tabs in explorer?