Don't forget that AWS is one of the biggest reasons so many OSS projects became popular. Redis, Mongo, ES, HashiCorp stuff, a complete big data ecosystem, got wider recognition through AWS's offering. Many people have yet to learn about dozens of obscure databases (that have been in development for years) simply because AWS or other big cloud providers have not pushed them.
Also, many projects receive a lot of contributions (bug reports, PRs, patches) due to liberal licenses increasing their use and popularity. I'm not particularly eager to contribute to anything with SSPL/BSL/etc-like licenses simply because I don't want to waste my time on something I can't use liberally in the future.