Seems to be filtering with sites with TLS 1.3 properly now. No longer downgraded to 1.2. This is a good site to test AV certs because they don't us an EV Certificate and aren't excepted.
A new observation while trialing Bitdefender. Before any known TLS 1.3 site would show TLS 1.2. I admit it is a guess on my part that they have completely rolled it out, but previously they would downgrade these certs. On TLS 1.2 certs it displays TLS 1.2. I haven't used BD since last summer really, so I can't pinpoint when the update was rolled in if it was.