After speaking with a friend with an Outback, he told me he did the firmware update himself withe the help of a post on another forum. This morning I download the files to my PC, unzipped and transferred them to a blank USB drive and installed the update. Took about 10 minutes total to do the update, but there are reports of this taking up to 30 mins. Per suggestions of others, before I started I turned off Bluetooth on my phone and plugged the USB key into the right USB port. After that I put into dealer mode per the pdf service bulletin and downloaded the update to the screen.
There are six different firmware updates, three for 2020 and three for 2021. For each model year you have to pick what nav unit you have, Base for dual screens, MID for 11.6" touchscreen WITHOUT nav, and HIGH for 11.6" touchscreen WITH nav.
Below the firmware options on the forum post is the pdf of the current service bulletin from Subaru. It explains the step by step process to install. At the end of it it describes the four updates this provides: a fix for the microphone level indicator being off, update to the voice recognition system to recognize short words such as "yes", freezing/rebooting issues for Android and the most important, putting the auto start/stop function on the main screen. Also there are reports that the sound and subwoofer bass seems to have changed a touch.
https://www.subaruoutback.org/threads/2020-outback-software-gigathread.517684/post-6046741