No-one here has a crystal ball, and things may or may not change under a new government.
That being said, over the years, in practice, guidelines have been as follows: having a pre-arranged visa is better than relying on VFEs (30 days). Extending either, a visa, or a VFE in Thailand (by 30 days) is no problem.
Overstays should under any circumstances be avoided. Covid extensions are, reportedly, frowned upon by IOs. "Too many entries", esp. via VFEs as well, as is "staying too long" (with the "wrong" visas) in Thailand. - IOs have a lot of discretion compared to other countries. (Things may depend on the individual IO, latest 'instructions from above', how busy the IO is, etc., etc.)
Both Bangkok airports have given repeat tourists a hard time (interviews, some denials) over the past five years or so. Other airports might be 'friendlier' in this regard.
Theoretically, you should not have a problem. There is, however, a chance that the IO who is checking your details may ask you a couple of questions.