Hello @Emanem, this issue is already being tracked at #5717. Since there's some additional info here, I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/steam-for-linux/issues/5717#issuecomment-748605476.
Closing as a duplicate.
Your system information
Please describe your issue in as much detail as possible:
I installed a new NVME and decided to transfer a bunch of games. Proton titles (such as Dark Souls III or Jedi: Fallen Order) did not transfer the Proton profile (nor the shadercache directory) hence I had to re-setup them.
Also the Proton software which requires intermediate shop fronts (such as EA's Origin) may have trouble when moving the installation folder, resulting in issues such as this (details here).
Steps for reproducing this issue: