I don't think anyone knows the full truth here for now. So far, immigration in Thailand requires proof of ongoing activity when renewing, but you can still cross the border without showing this (let's say in most cases). The real question is whether they’ll start getting stricter at the border or elsewhere. Anyone who answers 'definitely yes' or 'definitely no' has no clue.
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.