I'm lazy and if I use an appliance everyday I don't want to have to open a drawer/door, get it out, use it, put it back and close a door. I just leave mine on the counter and when guests are there I store those small appliances in a drawer or the pantry. I also prefer open counter space without a permanent structure on it.

A cabinet on the counter in the spot you're thinking might be right in the way of your main prep area (between the sink and stove). You may consider moving your dishwasher to the other side of your sink as well (so you're clean up area doesn't interfere with your prep area). What if you put appliances (like a toaster, coffee maker) on the fridge wall?

Your cabinets are already assymetrical. The ones to the left of the range don't match the ones to the right of the range. The shelves are not helping the balance either. That corner is for sure not the best idea for a coffee center.

That best location would be next to the fridge, for water. The MW needs to be there too, in either a wall cabinet or base cabinet.. Get rid of the tall cabinets by the wall oven, and move it to the end of the run by the door, with the fridge next to it with enough filler to not interfere. Then you will have a nice long area for smoothies and coffee outside the major work zone. You don't need more traffic in your way there in the corner. You also don't need to hide any of that with one of those doors that breaks down in just a few years.

Water can come from a sink.

If you add a beverage sink, sure, water can come from a sink. But none of that belongs in that corner. That's your prime prep zone. Prep takes place next to water, between the sink and range. Since there isn't a prep sink on the island, twisting and turning back to water isn't likely to happen very much.

IMO appliance garages were never a good idea and now pretty much a datedlook . A coffee bar should be in aspot where water is either plumbing into the area or where it is easy to access water and not in corner Leave the open shelving out it makes no sense thre and I love no uppers on a window wall

how many feet is the fridge/oven wall. ?? It could be set up better to get your needs a little better configured.

@herbflavor - that wall is about 11 feet. The double ovens will go and it will be a convection/microwave oven.

The refrigerator/oven wall feels cabinet heavy because they are all 24” deep cabinets. The hole between the refrigerator and oven is especially problematic because it is not wide - so no elbow room, no head room, and stuff will be inaccessible so deep in the hole. Replace the hole with another pantry cabinet. Then, on the right side, put some regular upper cabinets and you can have a cute breakfast/snack/bar area.

So something like below for the bev bar area and then maybe we reconfigure the oven/fridge wall somehow?

Would you leave any counter space on the wall with the stove and fridge?

Yes, like that.
I would eliminate one of the pantries from the refrigerator section in favor of a landing zone/counter space. But I think most people would prioritize the pantry space.