A tricky one and I'm in (or would have been in without Covid cancelling my trips) the same boat. My current drone is too big to easily take on a bike and I've been looking out for a smaller (and preferably folding) one for some time. It's the practicality of using one when you're on the move that's the main issue. Some of the rules and regulations that have popped up in the last few years - fly here / not here / under 30m only /under 50m only etc are very complicated. I've struggled to work out where / how I can fly near our flat in France and that's one fixed location. It's not really practical to keep on top of them if you're travelling and it's even worse if you're crossing borders / trying to check on fly /no fly zones in a language you're not familiar with. And that assuming you've got an internet connection to enable you to check.

My answer was going to be to apply the same philosophy as 'rough' camping - be careful, considerate and as invisible as possible. So no follow flying through the middle of town or buzzing the local police station / nudist beach It also meant - for me anyway - buying at the cheap end of the market and treating it as more or less disposable. There's a few around that would fit those requirements but the whole drone thing is becoming so contentious I'm teetering on the brink of not bothering with it at all. For me Covid has pushed the issue into the future so all I'm doing at the moment is keeping a watching brief and deciding later.