Thanks for sharing your feedback anyway with us. It pushes us forward. 
The storage issue was described here a lot, so anything surprising, I would say. Unfortunately, it was not caught during our public testing - Turris OS 5.3 is in HBT (Testing) branch! It was there were almost three weeks, and no one reported it to us. Currently, we don’t have tests for Storage plugin, and it is the culprit on our side, too.
We informed you here on the forum that we are preparing Turris OS 5.3.1, which was recently released, and we hope that it fixes the issue for you. You can join us to make our products better. Our positions are still open.