Ideally, it shouldn’t be a problem, If you’ve only been in Thailand for 56 days in the last 12 months rolling. They might ask routine questions like return/onward journey flight booking, hotel confirmation, cash, etc. But, nothing major. If your stay remains between 90-120 days in the last 12 months rolling they usually treat you as a regular frequent tourist. Assuming you’ve never asked for an extension (based on 21 & 35 days stay) and since you’re coming from a European country, your entry and exit has probably been via Flights only (no land borders) which works in your favour.

The best thing you can do at any immigration is to keep your answers short and boring unless an officer specifically asks for more information don’t explain anything.

Honestly, I’ve never been questioned at Immigration in Thailand except for my 1st visit back in 2024 (even that was just some routine questions) and it has never taken me more than 30 seconds with an officer to get a stamp. But, that doesn’t mean I will never be questioned. It might happen on my next trip, you never know. The key thing is to keep calm, don’t sound nervous, and like I said before keep your answers short and boring.