

Not OP but i often just use the timer in these cases. I also have a cheap bluetooth remote that was included with a selfie stick ten years ago(got it for the 1/4" thread to put my phones on a tripod).
But atleast on android you can also use most bluetooth game controllers as a remote to release the shutter. I snapped quite a few pics with my xbox and 8bitdo(small and pocketable) controllers over the years.
Edit: Which reminds me that my old DSLR had a IR receiver for remotes. So i often just borrowed my parents tv remote in the night because one random button had the same ir signature as the official camera remote of the manufacturer. Good times
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