Need advice recording an event

I need recommendations for a starter video camera or camera that can do video recording. Recording time is 3 to 4 hours long. So it needs to be able to run and not overheat. Budget well… it’s not very much. Just trying to find the best option and the best quality for the price. Any ideas?

The Panasonic HC-V380 can do about 1 hour with the included battery, so you would have to get a replacement battery (there are additional batteries with twice the capacity). Alternatively, you would have to plug it in via the powerbrick.

A used Canon HF G20 would be a good camera. Only $450-475 on the used market.