Apparently a patch to Wine has been submitted: see EVE Launcher crashing on "Checking GUI Version..." - #86 by Raimundo_Desilu
Wine point releases in the Development branch seem to appear about every two weeks. Since Wine 6.3 appeared 26 Feb 2021, the earliest a release containing the patch might appear seems to be 12 March, if the patch passes pre-release tests. The previous draft of the patch failed a Testbot test.