Customer Exclusion from Discount/Offer

I would be nice to have in standard the feature/functionality to exclude (One or group of customers) from discount/offer.

Let's say we have 3 Customers.

1- Default Customer (H101-Store Itself)

2- Uber Eats (Online Food Delivery Customer)

3- Deliveroo (Online Food Delivery Customer)

*Offer/Discount shall only be applied on Default Customer (Walkin Customer) not on Online Food Delivery Customer.

Thanks,

Aqib Zaka Dar