Hello,
upgrades from a 1030 to the plus (old one stays with better half). The plus asks me again and again to setup Di2 kits whenever I sees/scans any bike. I have a "real" Shimano GRX Di2 and a Steps (eBullitt) with a Nexus e5 (as Di2). Buttons (and screens) are all fine for me. I'm annoyed by the pop up showing up every other ride (once I switch bikes – which happens daily).
Best, Lorenz