Maybe neither. Field testing is needed. One needs electrons and photons in that order. High resolution images require a lot of power. High FPS rates require a lot of daylight. A dark forest environment is difficult to deal with. Then there is the mount: tripod,
helmet, backpack, chestpack and handheld are factors for image stability. You have the Hero10 with new whizz-bang features: new processor, stabilization and low light performance. Ever notice that the demo videos seem to be made at solar noon?
We will be waiting to learn of your field tests.
Not yet. Removing a battery greatly reduces the heat that is transferred to the camera electronics. For unknown reasons, no one has hacked ( made a dummy battery with power leads going outside ) the battery compartment so you have to have a battery installed. The add on-power supplies hook into the battery with a USB type connector. The add-on housings makes for a larger case but claims of 'all day power' are made. The camera is no longer waterproof.
Weekend is coming. GoPro10 time for you. Good luck.