Yes. eSIMAdvice currently lists 52 Stellar eSIM Guernsey plans.
The lowest displayed Stellar eSIM Guernsey plan is Regional · 42 countries · 500 MB · 1 day · 5G · Europe + Free VPN, at $1.33.
Guernsey · 18 GB · 20 days · 4G · + Free VPN is the current best-value match by displayed price per GB: $1.02/GB ($18.33 in total).
Yes. Eligible displayed prices already include the active ESIMTWEAKS coupon where the provider rule applies.