Ricciardo is now about 23 seconds down, not sure how long a pit takes here compared to elsewhere, probably quite bad considering the straight and how slow you'll be down the rest of that long straight.
So while most look like they'll two stop Ricciardo will gain 10-15 seconds by doing one under the VSC/SC.
Verstappen just now 22seconds in the pits but probably lose another 2-3 seconds down the straight.
I don't think it's going to work out great for him unless the mediums work great and last well.