Yeah I don’t have an answer for the thing you’re actually asking (sorry) but this is 100% a reasonable take and honestly I fully approve of their approach here. Strawberry is licensed under the GPL, it is libre software and can be packaged in any FOSS operating system without issue. This adds to the free software community. They are explicitly only selling to people who don’t value free software enough to use a free operating system.

And to be clear, I can guarantee that no one loses sleep over piracy of their GPL software, otherwise it wouldn’t be GPL. I see it more as a way for the devs to wash their hands of troubleshooting for operating systems they don’t want to care about - anyone on windows/mac who cares enough about strawberry to pay gets listened to, but otherwise you’ve created an easy excuse for ignoring the extra work.

As an aside it’s my preferred player on linux, good software.