What happens if Ledger Live goes down or becomes compromised?

What happens if Ledger Live goes down? For that matter what happens if for some reason we can no longer use our ledger devices.

I've been wondering this for a while now and I'm asking this as an honest question because I genuinely do not know. Most of my crypto is stored on my Ledger cold hardware wallet. I've done all the right things. Written down my seed phrase. Have it stored in more than one physical location. In fact, if you really want to know. I have it stored in a safety deposit box at my bank and my daughter will get access to it in the event of my death as is written in my will. But I digress.

It seems that the ledger hardware is bound to the ledger live software. Hence my question. What if we lost access to the Ledger Live software. What if we all woke up tomorrow morning and learned that Ledger Live had been taken over by North Korean hackers working for the government and they could take control of our assets and drain our accounts at any moment. So, we all log out. Shut our systems down and refrain from logging back for fear of losing our crypto. How do we rescue it. Is there some way I can use seed phrase to get access to my wallets without going through the ledger device.

Note I’m referencing Ledger here but that’s only because that is the wallet I use but I would guess the same scenario and question could be posited for any of the other popular hardware wallets.

And please explain it to me like I’m a 5 year old. Thanks in advance.