The All Software menu and groups are only available when more than 12 software titles are saved on the Nintendo Switch system.
Up to 100 groups can be created with a max of 200 titles per group.
The same software title can be added to multiple groups.
What to do
Make sure your Nintendo Switch system has been updated to version 14.0.0 or later.
From the Nintendo Switch HOME Menu, scroll all the way to the right and select All Software.
Press the L Button to view your software by groups.
The first time you create a group, you’ll get a popup where you can select Create New Group.
After the first group has been created, click the + Button to create a new group.
Check all software titles that you want to add to the new group, then press Next.
Re-arrange the software titles as desired, then press Next.
Enter a name for the group, then press OK.
The new group will be added to the list of Groups.