Last April I made a video raising the major issue with SF6 and using relay connections instead of P2P on Steam.
Today I am happy to update you that this now have gotten fixed with the recent steam beta client update.
Find the video in the comment.
As a Network engineer, check out me breaking down a major issue with SF6 online on steam, where Capcom is forcing Relay Connection matches instead of P2P connections and how this will likely introduce a worse online experience for a ton of players.