I installed 20.04 on new hardware and configured Users to use automatic login since the machine will be used by multiple users in the household and will not store valuable data. Settings -> Users shows that automatic login is enabled and using the account I created. Most times upon power up the automatic login feature works as expected. But about 1 in every four boots, the screen goes to the manual login screen. This seems to occur randomly. Once it occurs, if I power the machine off and back on, it usually executes an automatic login. Not sure which package controls this feature so I have not submitted it as a bug.