App Lounge search not working correctly

When searching for ‘launcher’ in open source apps (common apps and PWA’s not ticked) I get ‘Rootless pixel launcher’ as one of the results. If I search for ‘pixel launcher’ there are no hits.

When searching for ‘pixel launcher’ in all apps (open source, common, PWA):
1/ I would expect apps with the name pixel launcher to come up on top.
2/ the results no longer contain ‘Rootless pixel launcher’

If I search for ‘AOSP launcher’ in all apps, I get several open source results (Lawnchair, Simple launcher). When I only search in open source apps: no hits.