It’s not ‘a risk they ask for passport pages etc’ they ask for it 100%. It’s part of the application. You have to prove that you are in the country where you are applying.
I went to do my 90-day report a few weeks ago and the woman at the immigration office said to me ‘next 90 day you need to go out and come back in’. She didn’t even entertain the idea of an extension.
The changes you are referring to are for people coming in visa-exempt, not DTV holders (although they might be more strict on everyone I guess)
I wasn’t asked for any proof of residence. I just filled in the address of the gym when asked for ‘address in Thailand’ (the gym does offer bungalows for rent), but they never asked for any confirmation or other proof.