I’m just swearing them off for anything that involves software. As DC Rainmaker points out, Shimano has always struggled there.
But there’s been plenty of other issues. Ultegra crank failures galore. MTB brakes with wandering bite point and oil leaks. Brifters eating through shifting cables like Cookie Monster eats cookies. Etc.
They never improve the products to resolve these issues either. They just keep pumping out the bad product.
Not exactly the reliable products that they built their reputation on.