Richard Stallman, the man behind GNU and FSF. He makes a distinction between free software and open source software.
Stallman is not a pragmatist. He quit his job as a professor at MIT because he felt they were forcing him to use proprietary software, which contradicted his ideals.
Linus still keeps Linux on GPLv2 because he disagrees with GPLv3+ and its anti-tivotization clauses. Companies that contribute code back to Linux is good enough for him. Linus has a more pragmatic view.
Hyprland dev’s response to blog post: https://blog.vaxry.net/articles/2023-hyprlandsCommunity