Yes.
For example, here are Mel Kipers Bills pick for the past 10 years, and who the Bills actually took (in parenthesis).
2013: Jonathon Cooper (EJ Manuel)
2014: Taylor Lewan (Sammy Watkins)
2015: No pick
2016: Emmanuel Ogbah (Shaq Lawson)
2017: Haason Reddick (Tre White)
2018: Tremaine Edmunds, Lamar Jackson (Tremaine Edmunds, Josh Allen)
2019: Jonah Williams (Ed Oliver)
2020: No pick (Diggs)
2021: Tyson Campbell (Groot)
2022: Kaiir Elam (Elam)
Outside of Lamar Jackson over Josh Allen, is there any real difference here between an amateur mock drafter and a professional GM?
Tre White is probably the best non-Josh-Allen pick in the last 10 years and he had us taking Reddick, who was an all-pro last year, and the pick we traded to drop down to #27 was the pick KC used on Mahomes. So.. yeah.. not ideal.
Summary: Bills have drafted no better than amateur mock drafters for the past 10 years (and longer, but I didn't feel like spending time going back any further).