I can confirm Lemmygrad is accessible. Hexbear is, but loads VERY slowly in my experience. No such issue for Lemmygrad.
By the way, the firewall varies slightly in different provinces. That being said Lemmygrad seems accessible everywhere.
ps: most sites are accessible. Only big American tech sites that don't want to follow local law (Google, Facebook, etc.) are blocked. Many other websites are not blocked but just load really slowly. Not certain why, part of it may be the websites throttling IP address from China.