Assigning or adding a case to a queue

hello

can someone please help me understand the difference between adding a case to a queue by using the 'add to queue'  or assigning a case to a team which then puts it in the team queue for them to pick up (currently we use the later option) but I am unclear on the pros and cons of both options

I have read lots of MS articles but nothing is really clear

any advice would be great , thank you