I'd argue that linux is fine for every use case, BUT there are obviously some tools that do not work on Linux simply because the devs don't support it. So it's more a matter of having to learn other tools, which can be a huge undertaking I'll give you that. The biggest step you can take towards using Linux is actually using all the open source tools on windows first. If all of your software works on both windows and linux, then changing the underlying operating system isn't that big of a deal anymore. (some exceptions do apply, like some games will never work on linux because of kernel level anti cheat or the devs seem to straight up hate linux users, see Destiny 2 for instance)

That's okay. Half and half is fine. For a while I really wanted Linux phone, like pure Linux, but that prospect is not happening any time soon and why settle for inferior experience that much when you can get close to open source.