studio export settings

I continue to research how to best use my one x2, now looking at the desktop studio export settings

I am trying to figure out the "best" export settings? Most settings work independently leaving guesswork for the user.

Turning it to prores turns off the option on bitrate (assumed high).

How about encoding format? 264 , 265 or prores ?

I've seen mentioned in a users video upping the resolution to 2560x1440, even if resulting video (reframed) ends up closer to 1080p

How about color plus and remove grain. These seem like no-brainer, should they always be checked?

Seems like there should be more help and guidance on what to choose and when - my questions are all around outdoor, good lighting, such as skiing.

Are there expert tutorials already created I can be pointed to?

Thanks,

Steve