But most of those issues are because Linux doesn't have enough market share. No one brushes off Windows because they need to support Windows and they need to add CI/CD for Windows.

The combination issue is a real issue though that (as far as I know) is mostly solved with Flatpaks, or in case of games, by using the Steam Runtime.

Of course, it is a "chicken and egg" problem of "we don't want to support Linux because there aren't enough users using it" but "we don't want to use Linux because there aren't enough business supporting it".

Thankfully with improvements in Wine the need of having "native" Linux support is shrinking, but at the same time there is still a looooong way to go (like the issues I said before with Affinity).