Is it possible to get beta test gifts for Steam shared library players?

I bought the game on another Steam account but played the beta on another by gaining access through shared Steam library. Can I also still get the beta test gifts even the current game profile is for the Steam account that does not own the game? Also, I have Vermintide 2 on both account (only purchased but haven’t played yet) but my game profile does not have the Vermintide 2 hair bonus. Is this still caused by the reason the game profile’s account does not own the Darktide or other reasons?

It is not

Regrettably, accounts with access through shared Steam library are not eligible for the beta rewards.

As for the Vermintide 2 cosmetics, I’m not sure off the bat, but it’s possible this is the case. I’ll query this internally and we’ll look into it. Thanks!