I'm in the same boat as you I entered 4 times in 2024 I'm currently at home uk and am returning in January when I entered in October they pulled me aside and grilled me but eventually let me in make sure you have onward travel within 60 days, 20k baht
Ok I was taken aside last time entering on visa exempt told to get a visa next time I will be home for a months work in UK and intend on coming back with a tourist visa issued from uk I hope this is what they meant when telling me next time get a visa visa exempt are of no cost tourist visa around£40 obviously they are looking for payment some shape or form