Question about Vogels Base 45 L

We have this wall mount in operation. Der hängt daran: https://www.digitec.ch/de/s1/product/samsung-qe65qn90a-4k-neoqled-va-2021-65-tv-14781276?supplier=406802. I would like to buy a Sonos Arc. Does anyone know of a mount that would work well in combination with this wall mount? We have the TV "close to the wall" most of the time (there's still a cable duct about 5cm thick running up the back) and never tilted. Ideally, I'm thinking of a bracket for the Arc that you can "hang on the bottom". I hope it's clear what I mean.