<< "force quit" programs in the Activity Monitor in the understanding it's healthy maintenance.>>
force quit is a desperation move, and should ONLY be used when a program will not respond to a more Polite QUIT command off its menu. It is not likely to be the cause of your trouble, but being forced to use it more often than 'Rarely' suggests (but is not a certainty) you MAY have a another festering issue with your computer.
As for that additional container and Volume: There is no known MacOS feature that includes creating a volume with that name. Its name, which includes many random letters from the left side of the keyboard, suggests you leaned on the keyboard and created it by accident while doing something else.
As it is, will not harm ANYTHING. I suggest you Erase that volume and leave it alone until you are doing other work that requires you to fiddle with your drive format. Deleting a Volume can cause unexpected side issues.
If you MUST fiddle with it now, be sure you have a Trusted recent backup, because any OOPs could eliminate your drive. That partition would be removed inside the Partition function.
