Do I need to stay in the same hotel for 5 days under the Test & Go program in Thailand?

when you book day 1 you are also required to book day 5 at the same time, and also show that it is paid for as well.

The approval process for Thai Pass says it's between 3-7 days. Mine took 5 days - applied Tues morning and received approval on Saturday late morning.

All new TEST & GO applications must submit A proof of prepayment for 2 separate nights of accommodation at government-approved hotel/s, such as, SHA Extra Plus (SHA++), AQ, OQ, or AHQ on Day 1 and Day 5, and the expenses for 2 RT-PCR tests on Day 1 and Day 5. The prepayment for Day 1 must include an accommodation, a test and a prearranged transfer from the airport to the hotel.

Travellers can book 2 different hotels for the accommodation on Day 1 and Day 5. However, on both Day 1 and Day 5, they must stay within the room for the RT-PCR test result.

You do not need to stay in the same hotel for 5 days.

You can book your day 5 test in Phuket, through the PSAS website.

You'll need to upload your day 1 SHA Extra Plus hotel booking which clearly shows that it includes your first covid test and transportation from the airport.

Then there's a specific question on the Thailand Pass website that asks you to upload the paid invoice for your covid tests. You can normally ignore this in Bangkok because it's included in your hotel booking, but since you also want to use Phuket, you would then upload your day 5 test receipt from the PSAS website in this area.