User 1 isn't the super user anymore in Drupal >= 10.3

I want to take a step back instead. What's the reason we need user 1 right now? For serializing references?

You can run into any kind of access trouble if you create or update an entity: 3rd party modules, EventSubscriber, hooks, ...

see 🐛 Use account switcher with drush commands Needs work

Automatically closed - issue fixed for 2 weeks with no activity.