The problem is that if the 5.4 update bricks the car (which it has done to quite a few) it won’t accept another update overwrite. Some cars are left with no OS. Skoda, so far, have not been able to offer a fix.
One other thing to watch out for with the update is charging using Octopus IOG, a lot of users are reporting, with both Enyaq and Elroq, that after the first charge session the car then refuses to wake for the following sessions leaving users with a low charge. Again Skoda say they are aware but no solution yet.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!