Presently I have some BTC in a custodial wallet which I want to transfer out. I don't want a use a wallet at all. Neither hardware nor software.
If I install Electrum on a live Ubuntu session, create a wallet, transfer BTC to it, note down the seed phrase and terminate the live session, will I still be able to recover my wallet with coins several years from now?
What are the downsides of this method over a cold storage wallet?