I can’t speak for long ago, if that’s what you’re referring to, but the last two generations of the Skype client have run just fine on Linux. I’ve been using it for the last five years. My only real annoyance with it (that is, the Linux client rather than Skype problems in general, which have steadily got worse) is that it relies on an org.freedesktop.secrets implementation (e.g. gnome-keyring, kwallet) to stay logged in, and so because I stubbornly don’t have such a thing (I have no other software that wants such a thing, and I use Sway so anything will be poorly-integrated), I have to log in every time it restarts. And it’s really slow to start, badly-implemented web tech UI; twenty seconds to start and show the normal logged-in start screen, then it decides you’ve been signed out and takes you back to the login screen… all up, it tends to take almost a minute to start, including typing password. Except that some time in the last couple of months it broke further, and now freezes up for a minute before taking you to the login screen, in which it also requires you to enter username, not just password. So now it’s more like a solid two minutes of startup time, if you’re paying attention to it.