Yep, you must quarantine and be tested here. The good news is that the hotels look quite nice. The bad news is they're quite expensive. Start at 35,000 baht a week, as I understand.
- did you try to get home? And in case you've forgotten the first advice from the embassies was NOT to travel- stay put. When they changed this advice it was too late for thousands of people as borders closed and aircraft grounded. So, stop trying to be a smart arse!