

Not everything made by big tech is bad.
React is great. It’s open source. The governance is reasonable. Why should we replace it?
WebP, WebM and AV1 are great open technical formats. We should use them.
If a standard is truly open, then you should judge it on its technical merits, not some weird purity test about where it came from.






This is pretty off-base for what OP is asking about.
React and C# are open source.
WebM, WebP, and AV1 are open standards that have mature and well developed open source implementations.
Literally every item OP asked about is already OSS. OP just doesn’t like that they originated at Meta, Microsoft, and Google.