Should I book airport transportation to my hotel or can I use public transport in Thailand, and how does the PCR testing and hotel stay work?

The user is inquiring whether they should book airport transportation to their hotel or if public transportation is a viable option. They also want to know about the differences between PCR test options and if the results are quick enough to allow for checking out of the hotel the following day, specifically after a one-night stay. Comments suggest that if staying at a SHA+ or AQ hotel, the hotel will provide transportation. The PCR test results are typically available in about 4 to 6 hours, allowing for possible early checkout, but there may be provisions for longer stays depending on the test timing.