Where does it say that Google is blocking all side loading?
It says they are blocking the installing of unsigned apps. This is the macOS Gatekeeper being the only option on Android. You can still download and install apps that aren’t in the Play Store. So the EU will still love this as 3rd party apps can still exist, but at the same time anything “illegal” can be reported to them immediately.
Where does it say that Google is blocking all side loading?
It says they are blocking the installing of unsigned apps. This is the macOS Gatekeeper being the only option on Android. You can still download and install apps that aren’t in the Play Store. So the EU will still love this as 3rd party apps can still exist, but at the same time anything “illegal” can be reported to them immediately.
It’s effectively becoming the gate keeper in the same way apple only allowing app installs through its app store only is a gate keeper.