Creaky Frame?

[flyboy21]

New to the Yeti ownership, and absolutely love my new (to me) bike.  But looking for help solving the creaky issue.  I have a 2021 SB150, and I’m getting a creaky and sometimes a “knocking” sound from the pivots just about the bottom bracket.  I was able to reproduce the sounds finally by locking up both brakes and then exercising the suspension.  

Does anyone have any thoughts on how to narrow it down further? Or if I’m doing any harm by continuing to ride it?

Thanks in advance.