H.265 is patent encumbered. Blame the 2 or 3(?) patent pool holders (for-profit corporations, unlike non-profit -and-slowly-losing-market-share Mozilla) for not making it free to use for everyone.
This is why AV1 is preferred, it saves bandwidth and there's no threat of being sued into oblivion.
asked this somewhere else, but does anyone know how it compares to Cryptpad which is also developed in France, open source, self hostable, collaborative, and end-to-end encrypted?