There have been several instances where updates to an addon broke something. The developers of the addon may add a new and very useful feature, or patch a security issue, but unintentionally create a bug. Or, there is no bug but a breaking change broke something on one’s setup and they need time to sort it out. Currently, there is no way to downgrade an individual add on other then restoring an old snapshot. If you didn’t do a snapshot, or made other changes since the snapshot, you’ll be stuck or lose those, and will need to wait for the patched version to be released.
Several recent examples where this can be beneficial are linked below
Not being able to “downgrade” an addon that causes a problem is a real deal breaker for me on using a supervised install, and one of the reasons I use Home Assistant container
Sorry didn’t see that one when I searched, although yours is a bit broader then just the addons. I think just the addons might be a bit simpler to get going first, since they’re docker based containers. I went over and voted for yours too though.