Hi! Does the Bitdefender anti-virus/malware protection etc function (fully) when I'm using my Express VPN?
As long as you don't try to use the VPN feature in the Bitdefender product at the same time as Express VPN, there will be no problem.
Even if you use bitdefender vpn over express vpn, meaning, using a vpn inside another vpn it will not cause any issue. It may causes slow speed or sometimes even high speed in connections but that can only be known if you run what is known as double vpn yourself.
OMEN Laptop 15-en1037AX (Bitdefender Total Security) & Samsung Galaxy S22 Ultra (Bitdefender Mobile Security)