Title seems to suggest that Alma Linux is somehow not free software, which is not justified at all by the article. Unless they are trying to say RHEL is free of charge? Which is also not true or mentioned in the text.

This doesn’t seem to really answer OP’s question, think you may have misread second half of title.

Why would you use dwm for floating windows?

Source on that? Not saying I don’t believe you, but an article on the topic would help us know what behavior we’re talking about here.