::
as soon as you write then down, you should have restored the wallet immediately using those words as a test, it has a checksum word on the end so if the restore works you’ve more than likely got the words written down correctly and entered them correctly a second time. bonus point if you can write down a receive address and recognise that same address on the restore, but that can be tricky (account based blockchains like ethereum are good to check against)
best option right now might be to get a second hardware wallet, maybe the cheapest version, and use your words to restore to that wallet, and it should load accounts that match your original hardware wallet.
edit: apparently there are options on your hardware wallet already to check the backup?