Underlying windows OS visible in Programs

[saqeria]

I just finished installing and setting up winapps according to the instructions. So far so good and everything seems to work as intended.
However, the only issue I'm facing is that it seems that in all apps on specific actions the underlying windows OS is visible. For example when right clicking or when new windows spawn in. I searched through the gh issues but as far as I know I could not find anyone with a similar experience. Is there a fix for this or is it to be expected?

In case it is of any use here is my ~/.config/winapps/winapps.conf

[DewasSquid]

Same problem here. How did you install FreeDRP?

[saqeria]

@DewasSquid Through pacman from arch repository (version: 3.12.0)

[DewasSquid]

Then this is a more general problem, I thought it might have been related to the flatpak, which I'm using. But that was just a speculation.