A couple friends and colleagues have arrived in the past two weeks and heard pretty consistent airport experience - basically the same as pre-Covid (except that you are given RAT and told Covid-prevention guidelines). Although the airport (TPE at least, will experience TSA first hand this weekend) still feels empty. Some shops are still shuttered and notably SQ lounge still not operating. Many buses are still running on a reduced schedule (airport MRT has returned to normal schedule).
From a tourist perspective, I think most aspects would be similar to pre-Covid. Everything is open, restaurants and attractions can be crowded. Masks are required in most situations, and some venues/restaurants check temperature (despite fever no longer being the top 5 symptoms). Hotels are still charging the heightened price since quite many locals still prefer domestic travel.