It won't trigger quick charge, but it will still charge 5v at 2a, which is very very decent anyway. The difference may not be that much more in real life use cases.
Would this fast charge a galaxy Note 8?
You get the superior fast charge though
Problem is this isn’t £5
For the last year or so I've started buying Choetech instead of Anker and found the quality to be even better and cheaper. I have the following for my Pixel 2: CHOETECH USB Type C Car Charger with Power Delivery And it works fantastically and has QC 3 so does fast charge (adaptive fast charge, ie QC 2 for Samsung phones) as well as PD for USB type C connections