[Aldqueath]

"you can’t both sell on steam and sell cheaper elsewhere"

Actually you can, this clause only applies to steam keys which is understandable especially since when selling those you keep 100% of the profits while still using steam features. However nothing keeps you from selling your game both on steam and epic games store while having it cheaper on egs, as any copy sold on egs will not be a steam key and therefore will not use steam features / bandwidth.