Loot filters not syncing on Steam Deck

I've been playing PoE on my Steam Deck lately and I am unable to sync my online filters. It works normally on my desktop PC (Windows).

I suspect this is something related to the folder that is created to simulate a Windows drive on Linux, because the Online Filters folder is empty. So my guess is that the game is unable to download the filter to the correct folder path.

Searching online, I found other people having the same issue on Steam Deck, but with no solution.

The only way to use the loot filters is to manually download them into the folder.

I run Linux and I have found out that I need to manually copy the filter, too. The path I use is:

~/.steam/steam/steamapps/compatdata/238960/pfx/drive_c/users/steamuser/My Documents/My Games/Path of Exile$