I don’t order delivery, but I do order pickup, and I like when restaurants have online ordering using the same system they use in the restaurant. It’s common with restaurants that use modern PoS systems like Toasttab. Prices are the same as if you order in person, since they don’t have to also pay another third-party (DoorDash, etc).
This was going to be made illegal in California, but restaurants got an exception added to the law at the last minute. It’s illegal in other industries now though - for example, Ticketmaster’s listed/advertised prices in California have to include all fees.