FFS get some technique. You use 3 squares folded over and do a pinch. You then use 2 squares folded for a second pinch. The last is two squares folded for a wipe, then folded again for the last clean up wipe. Yes, bidet is better but you're gonna have to poo in a public restroom at some point. This isn't rocket surgery, people. Get it together
Bidet is the obvious way to do it right. Japanese toilet second, but if you can-t go at home, at least use moist TP towelettes, and don-t flush them! Throw them in the waste bin!
They aren't exactly a proper bidet, they're just bottles with a nozzle. Some of them you can't even carry the water in it, you have to be able to access water where you're going (so, not great for camping usually, or portajohns).
But they do a decent job for the most part. Enough to at least reduce how much wiping is needed.
First vacation I went on after having a bidet for a couple years, I was miserable. My asshole had apparently lost its callouses and it bled and felt downright on fire for the second half of the trip. Now I never travel without my portable bidet. It does an impressively good job!