@Buffon_bj I'm actually running a bit different crankset - Geoid PM500 with 48/35 PassQuest chainrings and the small ring was rubbing but got a spacer supplied by PassQuest with chainrings (supposedly to install in 12s configuration), installed it and it works fine. Even the power measurement looks fine as well (compared with a trainer).
I'm actually planning to change the setup to 50/34 today as I'm missing a bit lower and higher gears (I'm living in a hilly region), so the clearance naturally is going to be better.
Have tried GRX crankset before (RX-820, 48/31) - worked fine, generally Shimano cranks tend to have better clearance than Geoid PM500/Magene PES505/PES515 so imo should be fine, wonder what is @EIB experience with Ultegra crankset.