Yes, was disheartened when saw the mesh screening at Geneva as haven't at other airports, even prior years at Zurich. Don't suspect is security issue, rather sunblock to protect people behind the wall of glass during the afternoon. Unfortunately, was unnecessarily rushed at both Geneva (staffing) and Zurich (1 hr layover). Have a less than flattering photo of 2 people working check-in with huge backup, taken CYA if problem at train clearly shows arrived over two hours early. Supervisor eventually added more agents, and when saw our ticket with connections, bumped us to the front...boarding as we arrived at the gate and I quickly snapped that photo. At Zurich, it is a huge airport, Swiss air has the favored A terminal, but United, and other International airlines are terminal E - tram underneath the runways to separate terminal. At least all were regular walkway to board - not board bus at gate and transported across tarmac to climb stairs to plane (limited number of gates at airport supporting modern wide body wingspan) Also boarding as I arrived, and missed the "Transfer" desk next to a different gate, noted when seeking to board. Had to go there for COVID Neg test paperwork review (also reviewed at Geneva) required for all US citizens, even vaccinated - which were only ones allowed in Switzerland, and the few foreign exceptions entry (foreign tourist not allowed entry). After review, they put a sticker on back of passport so could then board - but no time to find location to click a better picture.
At any rate, made it home - and actually felt safer on the "everyone tested" flights across the pond than come one come all on the US domestic flights. Ironically, we made the reservation an the day Switzerland opened up the US to "fully vaccinated" and during our return trip, the move USA to high risk where unvaccinated can't even change planes on pass through - shipped back to USA - and vaccinated, while allowed, must now have negative rapid test paperwork as well.
Couple takeaways from the trip. 1) Avoid "partner/co-ticket" airline mix (Star Alliance in this case) and try to keep all same airline. While works OK with the airline operations including baggage check through to destination, it is the user experience that suffers. Seats are assigned (and reassigned by airlines) both arriving on Brussels Airlines (and their unique COVID/Locator paperwork requirements), and the departure on Swiss Air. Worse, while the ticket was purchased through United, when attempting early check-in, was denied on United - even for those legs - as the trip originated with Swiss Air. On Swiss Air site, while could see the reservation and special Swiss Air ticket numbers, while never could change seats assigned, when attempted to check in got "server error" forcing the manual check-in. 2) Check Zurich to avoid 3rd country. I've done the 2.5 hr train vs 40 min Geneva train in past, and not bad and faster than changing planes for the short hop. Historically, United was the only carrier with non-stop to Geneva, but didn't think to check Zurich non-stop when the arrival was through Belgium, not paying attention to my return other than total time (typically 14 hours). I've done Orlando non-stop to Zurich on Edelweiss which was great - but their single day weekly schedule robbed me of a weekend. Also did Virgin Atlantic to London then collect baggage and recheck-in with EasyJet on separate ticket purchase for the final leg. Both Virgin Atlantic and British Air had non-stop Orlando to London Gatwick, but Virgin didn't serve Switzerland, and BA Swiss connections were out of Heathrow. It appears BA is now Orlando to Heathrow, so may be an option in the future, vs United to Washington DC or New Jersey hubs.