What date should I use for my 90-day report after re-entering Thailand with a re-entry stamp?

90 day report is for staying 90 continuous days in Thailand. If you left, it's not continuous.

When you Re Enter Thailand, you need to report TM30 and next reporting date is 90 days from you this Re Entry date...you can report within 15 days before expiry date ... if you leave Thailand before 90 days, no need for any report, but when you enter in future, have to repeat again same procedure.....hope this helps

A lot of people don't seem to know how to use 'google' search !

If you used your entry date in 2022 I think it would well beyond 90 days 😂😂😂

It's a 90 day report for being here if you departed then returned my understanding is the 90 day clock starts when you return .

new entry date

It is what it says. A 90 day report for being in Thailand 90 days, if you leave before 90 days you are not in Thailand anymore, hence no report required.

When you leave the need to report ceases. The clock resets to day 1 on your re-entry so your new date to report is 89 days after entry.