@Winston ***********
I was under the same impression as you back in 2021. I was stuck in Thailand during Covid and had to extend every month instead of every 2 and one time I went, the immigration lady told me she knew I was working online (teaching) and I should stop.
Weird thing is, I was teaching at a school without a WP for 6 months as the agency told me they were processing it each time I asked, yet they never even brought that up 🤷
My online teaching was all outside Thailand as well, as in the students, the platform and the payments