In this case the author is suggesting a way to avoid it, for distributions to not theme and introduce the bugs in the first place.
Re:Please don’t theme our apps
by oarsinsync on Saturday May 25, 2019 @09:31AM
(#20008936)
for distributions to not theme all third party applications by default, and for that to be a per-app user toggle.
I'm afraid there is no way around that issue with free software.