I remember a couple of years ago when my little brother saved up for a switch for like a year, and then didn't have any money left for games because of the prices.
I use CRDroid /CRAndroid, because it was the only de-Googled ROM for my specific model of phone (S20 FE Exynos), also (I think) it's a fork of LineageOS.
Depends on the bank's app. I have CRDroid (LineageOS fork I think) and my local bank apps have either full support or no support for biometrics (everything else works).
I think they meant they plugged the battery bank into the car's phone charger?