I have a 2017 Lynskey Helix Sport, and a 2021 Scott Addict RC.
To me, the Lynskey feels a bit flexier in the BB. I'm not saying it is, it just feels that way to me. The Addict RC feels more responsive at faster paces. I'm not saying it is, it just feels that way to me. I grab the Scott for faster group rides and races, and the Lynskey for longer rides, solo rides, etc. That being said, I can do distance on the Scott and the Lynskey does fine on said faster rides. I think it's mostly about perception and overall setup...Scott has deep carbon wheels, Lynskey does not, etc.
If I could only keep one, it would the the Lynskey, mainly because I have a thing for the look of Ti bikes. Luckily, I can keep both.