So I’ve just upgraded to Audacity 3.3.3 on my Linux Mint 21.2 desktop (3.4.0 can’t hack my old 2.4.2 files). 3.3.3 works fine so far as I can tell, but the GUI really can’t handle a 4k monitor. I’m using two different 4k screens, my Dell XPS13 laptop screen and a Philips Brilliance 272P, both set at native 4k resolution. With either monitor, Audacity 2.4.2 couldn’t really scale the action buttons right, but at least the fonts worked. I’d show you a picture, but as a new user the board will only allow me to embed one image. I’ll try the old image in a follow-on comment and see if it works.
Now look at 3.3.3 (3.4.0 is the same) on the same monitors, and note that the buttons, though tiny, are cleaner, but the VU meters are using enlarged fonts and show only one channel. Likewise, font and tool scaling around other elements of the toolbar are screwy:
While this is probably small potatoes in the bug world, it does make for pretty fugly interface, and it would be nice if this could be refined in future releases.