Yes. eSIMAdvice currently lists 11 AlpineSIM Belarus plans.
The lowest displayed AlpineSIM Belarus plan is Belarus · 500 MB · 1 day · 5G, at $0.68.
Belarus · 10 GB · 1 day · 5G is the current best-value match by displayed price per GB: $0.86/GB ($8.60 in total).
Yes. Eligible displayed prices already include the active AFFINCO coupon where the provider rule applies.