Visited on Tuesday and did a short charge with Swisscharge badge since it's only 1ct/kWh more expensive than the AVIA price and I didn't want to use the QR code payment.
There's no contactless reader, but QR codes appear on the screen.
There are 2 painted charging spots in the corner of the gas station parking lot. It's not the most convenient location, but with the cable length it should be possible to park pretty much in any direction and reach the charge port.
The charger looks identical to those in Chur, but it's the 180kW variant here, split between 2 plugs. I didn't see any of the devices that I speculated to be batteries in Chur.
There are multiple pictures of the station before the spots were painted on GoingElectric https://www.goingelectric.de/stromtankstellen/Schweiz/Egg/Avia-Tankstelle-Im-Hanselmaa-2/75270/ On one of the pictures we see the QR codes used to be different, with the name Eponet and different plug IDs. The location was added in April 2023 to GoingElectric. Since it's also the date of the last update, I think that's when the pictures must have been taken.