I wish they'd discount their 35W dual port chargers or that I could find a similar 3rd party charger.

My main criteria are (1) dual USB-C ports to charge multiple devices in one location, (2) compact enough to not block the other receptacle, and (3) ports face down/to the side so can fit between the wall and furniture. Unfortunately most chargers fail at least one of these.

This isn't exactly what you're looking for, but it may fit the use case.

I've recently been replacing some of the wiring in my house as part of a renovation, and I discovered that Leviton sells outlets with PD USB-C built in now! Not talking about the useless 2A USB-A "built-in" chargers of yore, now they actually have proper PD up to 60W!

They do also sell non-PD, so it requires some careful checking of the model numbers. And the 60W one is pretty large (the in-wall part) so it might not quite fit in an existing wallbox if it is a small one. But briefly: - T5636: two USB-C PD, up to 60W total / 60W individual or 30W each if both in use - T5635: two USB-C PD, up to 30W total / 30W individual or 15W each for both - T5634: one USB-C PD and one USB-A. USB-A is 10W and USB-C is up to 50W (even if both are in use) They also make T8xx versions of these that have 20A receptacles (NEMA 5-20R) but those are harder to find.

They also make other T56xx/T58xx which have non-PD USB-C, good for places like bathrooms where shavers/etc work fine on 5V.

I've found that putting a few of these around has eliminated a lot of the Anker chargers I used to have sticking out everywhere. They're completely in-wall and they leave both outlets free. If I need 100W for my computer, I'll still use a separate charger, but otherwise these are fine.

The only point they don't hit on your list is the ports facing down, but because they're flush at the wall, that means they don't interfere with furniture (any more than having any plug plugged into the outlets at all would).

If you're in Europe/elsewhere, not sure if other manufacturers make similar devices. I know Legrand makes some 30W PD ones in the US market, and as they're French, maybe they make them for others as well.

Depending on your location and exact geometry needs the IKEA SJÖSS might do it.