It's a mod. I quickly whipped this since I got tired of FS25's gloomy bale physics.
It's nothing spectacular! Actually, I'm not a modder.
This mod employs a simple LUA script with modifiable modifications that allow the bales' mass to be changed, as well as dynamic and static friction.
FIXED_WEIGHT_MULTIPLIER = 1.75, STATICAL_FRICTION_MULTIPLIER = 2.0, and DYNAMIC_FRICTION_MULTIPLIER = 1.2 are the default settings.

KnightRyder0902 is credited.