I was just told i had to buy and download their most recent product Desktop Pro Plus 2022, but low and behold - bank feeds still does not work!   Same error message, must "Upgrade Browser" on the QB site.   

Finally, was told after collective 4-5 hours working w/ support that Bank Feeds only works on IE, but most major banking institutions no longer support IE! 

Wish i would have seen your post initially, but i'm dumbfounded as to why QB support just doesn't quickly explain the problem.  This has been 4 weeks of calling repeatedly w/o QB blaming Wells Fargo.