You can't trust pronouncements when no evidence is offered
Interestingly, notable differences were observed in these sites between the two receptor states: for the active state, site I (purple) was located in the upper TM1 and TM7 region, while in the inactive state, site I (cyan) was found in the lower TM5 and TM6 region, an area which undergoes key structural changes upon G protein engagement and GLP-1R activation (30) and might therefore represent a state-specific cholesterol binding site
Besides, you have absolutely no guarantee of what is in that vial
Van Haren R, Mehran R, Correa A, Antonoff M, Baker C, Hofstetter W, Mena G, Roth J, Sepesi B, Swisher SG , Vaporciyan A, Walsh G, Rice D