So it's been 4 month and still no answer or fix from Apple, what a shame. In my device it's getting called 3 times, regardless if I returned a quick time line or not.

It's a bug on Apple side and it seems they have no intent on fixing it.

so we at 14.3 and it's still buggy, how are we suppose to develop like this? Timeline getting called multiple times, I'm using the policy: .after(/* 1 day */)) and it's not working

@parimi1107 Having the response like the following getCurrentConfigurations response will not help you, since if Apple decide to put your widget on the Gallery widget then it will show as it was installed which is false. Apple doesn't support this kind of status unfortunately, you will never know if the widget was installed or not since Apple also may call the timeline before editing the widget (I've log it to file and I saw they might call timeline).

Better late than never, I'm using this script xcrun scntool --convert INPUT.dae --format scn --output OUT.scn --asset-catalog-path .

Yep, I've done the same tests as you and came to the same conclusion. Both Xcode templates (UIKit, SwiftUI) seem to be leaving memory footprints. Hopefully, some Apple engineer can share some info regards that.