Thanks for the replies. To answer the above questions:
1) as I flew economy I was directed to the Gold miles and Smiles lounge. At 5am I would say it had a maximum of 10 people in it. It was easy to find a well distanced sitting area and enjoy a morning coffee.
2) Mandatory masks are just part of the game right now. I am not afraid, I am sensible. Considering that the whole of Turkey requires them when outside or receive a rather hefty fine of 900lira, I don’t see this even being a question on an airplane. ( especially when they provide them). Simply put, Turkish Airlines rule not mine.