I use an agent now for all things IMM related. We live in Bangkok, and filed the TM.30 when the furore first arose, (pre-covid), and have lived in the same address. Last year in May we went to Koh Samui for 3 nights at an hotel, where they probably filed a TM.30. Upon returning to our address in Bangkok I asked the IMM if I/he needed to file a TM.30 or not.
He said "no". In October last year we went to Spain and upon return I again asked the same question. Again, the same answer: "no". Since the May trip, I have obtained a new passport and the stamps were transferred without any issue, and my agent has filed all the 90 day reports since, with no issues. I don't even pretend to understand when, why or how the TM.30 needs to be filed now.