My App shows no activity today either. There’s a few users on the FB Elroq & Enyaq group that had issues updating and afterwards with the 5.4.3 update. I watched Matthias Speicher’s YouTube videos on the update and it’s a massive list of things in the car that are updated, not just the core operating system.
Unfortunately Matthias has closed “Electrified Speicher” in its current form,
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!