Yes, TPE are about 5 weeks behind LNER in this respect, however I do believe this is changing or has already changed to 1m. It's either changed this weekend, or tomorrow.
I was on a TPE train last Friday, where warnings were made of BTP boarding trains to issue fines, saying 2 metre distancing was a "rule" that must be observed " at all times" and the Guard also said they were in the "front portion of the rear train". There was, as you'd expect, no visible staff presence.
There was a member of off duty train crew travelling as a passenger in the front part of the train; when someone approached he grunted "train crew!". Hopefully one day someone will produce a staff pass in response.
My next train was a Northern train, which of course had no visible staff presence, but not only that, no announcements either! I didn't see any evidence of any taped off areas on this train, but I didn't walk through the rear coach, going straight for the quieter front coach. The lack of even saying which station we're at isn't really acceptable, but to be honest a wall of silence is preferable to the harsh warnings given out by the TPE Guard on the previous train.