lol. I'm an oldie too. TDAC I'll be doing next Monday. QR codes never seem to work and I still print everything off. Lol. But that's in case of a lost or broken phone. . I play safe!
Welcome to the older generation help line. . Lol. If your passport lets you have the 60 day "visa exempt" then all you need to fill in for arrivals from May 1st is the Thai Digital Arrival Card on line ( TDAC ). If you get really flummoxed then you can get help at the airport and do it on one of their little gadgets.
you asked if you could fill in another visa. Yes you can apply for a visa. Check how long the on line visa application will take for the embassy you're applying at.
Or enter visa exempt for 60 days, depends on passport.
No, you never filled in an online travel info form before because it only starts on may 1st. We used to fill in a little landing card on the plane years ago. Now you do that info online in the 3 days before you arrive. So day