South Thailand is pretty thick with Muslim community. To get to James Bond Island, there are several Muslim villages. Your friend will have no problems Halal.
I lived a couple places in Bangkok where I can hear the call to prayers at 5:00am.
In Bangkok, near/in Nana there are a few Muslim country embassies, there maybe a good place to get Halal. Nana is not recommended for the respectable crowd.
From what I read the requirements made it a little silly. Advanced degree or high income ($250,000 US with a million bucks in the bank). It really makes more sense to send two years abroad, 3 months Thailand, 3 Months Malaysia, ....
I always print everything when travelling, especially travelling into Thailand.
If you intend to extend your visa, you will need to take a printed copy of your eVisa with you to immigration. I tried to extend without it and had to come back.
I have not done any visa runs post-covid, however I used to do theme all the time. There are few in this group who have done visa runs to Cambodia, one individual claimed to have completed the whole journey in a couple of days.
Further, I imagine over the next few months more options will open up.
I have plans to start the process next week. After seeing all the requirements, go to office 1 , go to office 2, go to office 3, go to office 4 fill out paperwork, get prenub, find witnesses.
I opted to hire someone familiar with the process to do all the paperwork. I have done it yet so I can't tell you how it all worked out but ask me in 2 weeks.