There is no risk of brick or whatsoever. If you use a a PD charger you will be able to charge and play at same time, if your charger isn't PD compliant you can play but the battery get no charge or if is on standby will charge very slooooooow
You could be confused about a problem on the 2018 or 2017 about some bad docks bricking the switch after a firmware update, but that is about the switch trying to update the docking firmware and someting went bad. Today there is no chance of that.