I'll just share my personal experience.
In June 2023, I came back from a 3 days trip to Cambodia at BKK airport. Even though i chose a male IO that looked to process people fast and I dressed properly, I was pulled aside for my extensive history in Thailand. I was grilled for over 2 hours before they finally let me in. Main reason is they stated I used to have an Elite visa, but to not come back with no visa under no circumstances.
Then, I stayed here for a year using multiple visas through agencies (which makes my my passport very dodgy now haha).
I did 2 border runs this year. I had to leave the country earlier this month. My border run company offered to facilitate my arrival by plane even if I did just a 1 day trip out of Thailand and came back.
I was quite nervous honestly but went with it. I did a 1 day trip to Kuala Lumpur and when I came back to DMK, a female IO was waiting for me at a meeting spot, showed me my photo on her phone, I said yes. She escorted me to a booth, processed me and I was out in 2 minutes.
Service costed me 4,500B but was most certainly efficient. Not afraid to travel anymore now.
Hope that helps some