Try the KSP linux client. It is far more stable than the windows client. Heck, I've found it more stable than my outlook on my work machine, more stable than MS office on MS windows.
Port, native client, whatever. Most native Linux versions do not work well at all, and many that do have very low performance OpenGL renderer rewrites that cannot compete with DXVK.
There are obviously exceptions, but IME they are quite rare.
Port /= native client.
Try the KSP linux client. It is far more stable than the windows client. Heck, I've found it more stable than my outlook on my work machine, more stable than MS office on MS windows.