I had to reinstall my umbrel, but I did it on the same OS, I have just removed the umbrel installation and installed again. When I installed the LND, I spotted there is exactly the same seed as I had before, so I assume it uses some unique device id to generate.
The problem is, my BTC on chain wallet is empty, node is fully synced. If I put the same seed do BlueWallet I see my funds. Any clue?