Coincidences of life, this week I have been investigating what happened to my Telegram that did not allow me to choose a different download path. I knew I had done it, but not how or when. In Windows you can and I know that in some Linux distribution, like Ubuntu, too, but it has not left me either in Manjaro KDE or in Kubuntu. I thought, "Am I not using the Flatpak version?" because these package types behave differently, but no. I gave information in GitHub which ensures that the failure is for XDG, which was not hopeful.
Thinking a bit more, I probably did get it in Manjaro when using the version xfce-usb, which is a pre-installed image prepared for use on a pendrive. I installed Plasma, but I probably made the change in XFCE, so it allowed me to use another folder. When at the beginning of the article I mentioned the coincidences of life, I did so because today they published a note in which they mention that this bug has been corrected, so the Telegram download path can be changed and, in short, select destination folders.
XDG will finally allow us to select destination folders
The correction is described as'Folder selection in folder picker dialog now works for Flatpak apps and others using XDG portals", And that was the problem that existed in Telegram and other apps: instead of" Choose "appearing, since Telegram used the XDG portal to use the native operating system option, what we see in the button is «Open», so we cannot choose another folder.
The ruling has existed for more than a year now, but will be corrected on June 12, coinciding with the release of Frameworks 5.83, or so we understand and hope.