Just a little something from someone (Canadian / visa exempt) who was on COVID visa since January and did 1 visa run (land / Malaysia) + extension and one visa run (air / Cambodia). The customs officer didn’t like to see half my passport stamped from Thailand since almost a year and told me it was the last time I could do that. Luckily, Thai girlfriend said we’d get married soon (😅), but if you’ve been on COVID visa and extending, you will most likely be stamped 7 days to leave (I dodged it).
Good luck, going to learn Thai next 🙏