Does anyone have any recent experience with transferring from an international arrival to a domestic departure in BKK airport?

How long should I allow time-wise between my arriving flight and my departing flight?

I‘m arriving on the 27th at 13:10 with Qatar Airways and I want to fly to Chiang Mai the same day. I’m looking at a Bangkok Airways flight departing at 16:55 but I’m not sure if this is cutting it too short with any covid measures still going on and with it being increasingly busy at BKK airport.

I have another option departing at 18:15, but of course I’d prefer the earlier option.

I have checked luggage that I’ll need to pick up and check in again at the domestic flight, which I assume will add some time.

Anyone have any advice/recent experience?

Thanks!