Ah, thanks.
So yeah, The Long Term Support (LTS) version for Ubuntu is now at 20.04.1 and even though 18.04 is still supported, it is not current.
I will download that package though, and extract the .so files from it, to see if that will help me.
UPDATE: Yeah, that works. With those libs, I can run wings3d. (I still see stutters in the UI though, but they are hard to reliably produce, it is an intermittent problem.)
So yeah, The Long Term Support (LTS) version for Ubuntu is now at 20.04.1 and even though 18.04 is still supported, it is not current.
I will download that package though, and extract the .so files from it, to see if that will help me.
UPDATE: Yeah, that works. With those libs, I can run wings3d. (I still see stutters in the UI though, but they are hard to reliably produce, it is an intermittent problem.)