You need to change your protocol to OpenVPN. Once you’ve done that, Surfshark will obfuscate all of your traffic, no matter what server you connect to.
Camouflage mode is great for hiding your VPN traffic and bypassing some network restrictions, but it doesn’t work in countries like China that ban or restrict VPN use. If you need obfuscation to gain access to the open internet in such places, I recommend ExpressVPN.