They took away the best feature. The app window button no longer does tab instead shows full sized window of your open tabs open.
I *****ing hate how goofy this phone looks please fix
I preferred the list view in multitasking too.
I then decided to download the Goodlock App and now have various options back including the list view.
Perhaps give it a go.
You'll find it in the Galaxy Apps section @Thisupdatesucks
Current Phone ~Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+ Samsung One Ui 3.1/ Android 11.