I use two services that do work and alternate between them: Mullvad with Obfuscation turned on, and Ghelper paired with Shadowrocket (China side ones used by Chinese devs)

Wireguard is effectively blocked in China, from my experience so far.

Thank you for your info, I’ll be checking out these projects.

Not impossible, I haven’t used WhatsApp since being bought by Facebook.

Migadu is great for email