Rain is your friend during modern firearm seasons. You want lots of it, and want to make yourself comfortable with it. It will cover your noise, keep your scent down, erase the landscape making sign easy to read, and keep bulls up on their feet. Modern season is also more reliable from access standpoint.
Archery season are often more mild, usually cool mornings and moderate highs. But it can be really warm. That has impacts on not only critter movement and meat care plans, but can have big impacts on access as well.
On pressure. This is just one guys opinion and experience, pressure sucks no matter how you slice it. But pressure impacts Archery much more. Bulls become call shy, herds alter patterns to limit daytime movment and stick to impenetrable areas where a bow and arrow is useless even if you can get elk on their feet.