I am always affraid to update my firmware and my HW resets. It happened already 2 times... I don't like to handle my seed as it is secretly hidden lol
It can be a little annoying if it happens, but Ledger was supposed to fix that issue in the last firmware (1.6.0), so there should be no problem of that type when new firmware becomes available. I've never had that problem with my Nano S, and as for the Nano X I haven't had a chance to try the firmware update yet.
One of the things to watch out for is that the seed is always at hand in such situations, which can definitely be a problem if it is in another location, or if it is in multiple parts in different locations. As for the word input itself, this is not a problem and goes relatively fast, especially on the Nano X model.