I have a similar sloped ceiling in my tv room and bedroom. We used standard 4” cans (remodel cans would work just as well in your situation) and the bulb is able to angle inside the housing so nothing sticks below the ceiling plane. Only a fire hazard if improperly installed (touching insulation for instance)

https://www.houzz.com/photos/lafayette-contemporary-living-room-phvw-vp~170272342

Thank you! Do you have a link to the light fixture?

They are Nora housings (you probably need the air tight remodel but check clearances to insulation) and the NS-44 trim which comes with an adjustable bracket- you remove the socket from the can and mount it to this new bracket instead which lets it pivot.