I've been buying Bosch Icon wipers and I've purchased/replaced in 2022 and 2024, bought the Tahoe brand new in 2020 and I'm happy with 2 years. I suspect mine get chewed up when I'm lazy and don't fully clean ice off the blades/windshield and that is likely the reason they are not lasting more than 2 years.
When you guys say you are buying OEM, where are you purchasing from....GM Parts sites?
I live near many parts stores and I find that it is quicker (for me) to buy at the store and replace the same day. I don't have any complaints with the Bosch Icons, either.