My wife is not having any issues with AA and her S26U. Here is our setup:
Car: 2020 Toyota Rav4 XLE
AA Connection: Wired
Settings: We have AA set up to start as soon as it is plugged in.
Details: By default, AA does not start when plugged in. The cars infotainment center comes on and that is what we see. In AA, there is a setting to auto-start AA when plugged in. This does not always work, but we have not had any issues with AA wired since the upgrade.
Settings > Search for 'Android Auto' > Click Android Auto > In the Startup section >
- Start Android Auto Automatically - Set to Always
- Start Android Auto when Locked - Enabled
- Start Music Automatically - Enabled
Everything else we left at Default
This is how I have my Fold 7 set up as well and never had any issues.
note: The Start Android Auto Automatically, at least on our car, is hit and miss. About 90% of the time it does, but sometimes it sticks on the default Infotainment screen.