Moving Thunderbird profile from flatpak install

Hello, I tried following the steps on [[https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer|https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer]]. However, I currently have a flatpak installation where I land in a folder which also has executable among other files (?). I do not see the usually named profile folder and therefore cannot copy it to my new computer. Do you know how I can move in this case? Thanks