Not that I know of, at least not for our cubesat. The aerospace sector moves extremely slowly because of ‘flight heritage’ - basically, if it hasn’t been in multiple long-term space missions before then it’s an instant rejection. You might ask ‘then how does any new tech get into space?’ and the answer to that is ‘it generally doesn’t’. More amateur satellite developers like university programs tend to ‘move fast and break things’ but with an emphasis on ‘break’.

Besides this suborbital flight I haven’t heard of anyone using carbon fibre frames before. I’m not a chemical engineer but I would imagine CF composites may have issues with outgassing, compared to metals. Outgassing can result in volatile compounds leaving suspension under a vacuum and depositing elsewhere, particularly bad for camera lenses and solar panels and such. Since the frame touches basically every part of the satellite, the risk here is high.