Electric portable bidet is going to be a huge downgrade, I had to use one for 3 months while I was on a trip, I wasn't impressed, but it still beats using TP.

I've never seen anything like this, I'm buying one right now. To answer your question, it really depends, there is no international standard, I've lived in many hotels that have waterfall style faucets, so this one obviously won't work. My go to travel bidet is this, water tank is a little small, and pressure is not that good, but it's usable in combination with wet wipes.