I dont think it’s a relay thing. Primal aggregator definitely captures events from my relays.

Last I tested primal does not display annotations/quote highlights

https://github.com/nostrability/nostrability/issues/61#issuecomment-2610600036

cc nostr:npub1zga04e73s7ard4kaektaha9vckdwll3y8auztyhl3uj764ua7vrqc7ppvc nostr:npub16c0nh3dnadzqpm76uctf5hqhe2lny344zsmpm6feee9p5rdxaa9q586nvr