https://community.swisscom.ch/t5/Android/Samsung-Note-10-5G-unterst%C3%BCtzt-Swisscom-5G-nicht/m-p/594361
Unfortunately, this is where you'll find the unattractive information.
P.S. Unfortunately, I also bought a Note 10+ 5G.
Of course, I have my subscription with Swisscom, but I have not activated 5g because the higher speed is not much use to ordinary consumers at the moment and, as far as I know, it costs CHF 10 per month, which is not worth it for me. Incidentally, I am very satisfied with my Note 10+ 5g, I have had it for about 14 months.
Thank you for the info! By the way, you can report incorrect specifications directly on the product page.
Product page -> Specifications -> ↓ Show more -> Scroll down -> Report incorrect data -> And then change the corresponding entry or enter a "general error report".