Android 10 upgrade - Random reboots

[DeepSea]

That reminds me of an issue the FP2 had in conjunction with the battery that lost contact to the core module:

FP2 reboots on mechanical pressure

I don’t have the issue mysrlf, however I’m also not carrying the phone in my trousers’ pockets anymore. This sounds to me as if the reboots are caused by loss of contact between battery and mainboard, because the battery doesn’t sit tight enough. Does it get better if you fix the battery in its place, e.g. using a piece of (folded) paper?