Messed up the date, it was blocked since mid 2018 if i remember correctly.
As it stands now, harsher censors simply block QUIC altogether due to its low adoption and the lack of repercussions due to fallbacks.
While i admire Hysteria2, i think VPN providers should implement AmneziaWG as a starting point. I didn’t test your implementation, but I’m pretty sure AmneziaWG/Cloak are faster.
It doesn’t disrupt their current infra and nor require any development. I started to dislike the usually praised Proton, Mullvad and even Tor after learning how useless their solutions are at combatting censorship.
Its sad to see tier 2 vpn providers like ivpn carefully implementing V2Ray protocols (but most importantly financing the developers) while Proton doesn’t fix leaks in their Linux VPN client for years and Mullvad grifting misinformed EU&US users about their success in fighting censorship.
opengfw covers both cases with their analyzer AFAIK