I get your point
It’s most probably a ‘clever’ way to save traffic and storage cost.
But this is NOT clearly communicated up front, which is a pretty bad practice.
The last sentence in this quote implements regular apps are backed up (the way I read it that is):
Another specific disadvantage:
when you’ve stopped updating an app to keep functionality which is removed in newer versions (f.i. Athom’s tado app lost it’s geofencing function), you will lose it while the current stable app gets downloaded and installed.
When you’re lucky there’s a github/bitbucket older version repo which you can install per CLI
But still I am very happy to spend €10/y for the backup service, while I would have been forced to start from scratch otherwise. Which will cost me many weeks.
But, I have to say I never read about of this weird app issues before, the last several days some users started reporting similar issues.
And Athom made 1:1 backups possible for the Pro 2023, which is a big step forward.
With one major downside: Homey has to stop running during backup creation, and it cannot be done per LAN.