Swaps, coinjoins etc. all works fine. Bitcoin worked like that _always_.
OP_RETURN was capped at 83 Bytes and all worked fine.
The compromised Core changed it because of Citrea and because of shitcoiners and they apparently lie that Lightning or other things won't work.
This is OP_RETURN true history
https://melvin.me/public/articles/opreturn.html