I've got a spigan one, I got it after the spigan one I got for my pixel 3 means my pixel 3 is still in use, doesn't flatten the camera bump too much though.
i've got google's own one.
it's 'ok' - fairly slim, and the edges wrap around the screen a bit so you can put the phone face down. bit spenny for what it is though.
Any recommendations for a case for a Pixel 6? Ideally some fairly slimline rubber effort. If it evens out that camera bump it would be a bonus.