This is certainly true. However I updated the TPS65982 firmware on my phone and a) the update did work and didn’t break anything and b) it wasn’t that scary.
This exactly. This whole discussion is academic if the phone already has the latest firmware.
sudo cat /sys/kernel/debug/tps6598x/0-003f/customer_use
If you get 0x4c35445000000101 then you ought to update.
If you get 0x4c35445000000200 then I believe this is the latest (although I haven’t rechecked recently).