So what does “wait at the hotel mean”? In my case at Sandbox, drinks by the pool first night. I was never told I had to check in with the front desk everyday. After about a week I figured it out they told me “we do it for all guests”. Much less structure than ASQ.
The airline is the authority that will be providing your boarding passes. International transfers have been allowed at BKK for some time. Do you not need a PCR test to enter PI anyway?