I know what you mean and have an old light which does that, which was on the house when I moved in.
After frustratingly searching, I believe the terms you're looking for are dual light level PIR, hi-lo PIR, high low PIR.
Here's a product that has the feature although it may not be cosmetically to your taste https://www.universal-lighting.co.uk/products/dual-light-level-led-outdoor-pir-wall-half-lantern-white/ Here's another https://www.universal-lighting.co.uk/products/dual-light-level-led-dusk-dawn-white-outdoor-pir-wall-light-wide/
No affiliation to them just they came up when searching and had two products that matched. Good luck with your hunt, they are out there!
That's annoying! I'm using Graphene and I just installed KDE Connect from F-Droid to test, which didn't trigger, however it did bounce me for using Heliboard. Changing to default keyboard and reloading worked, ie it can only see my currently active one.
Using Shelter to set up a second profile, or the new Private Space feature on 15 may help provide isolation.
Halifax/ Bank of Scotland/ Lloyds does an integrity check that rejects Graphene or LineageOS phones completely.