Difference between General Ledger and Control Account

Sir,

I know the difference between subsidiary ledger and general ledger but have the following confusion.

According to my search, I’ve found
General ledger is a master account. Let’s say as an example, instead of keeping the individual balance of each customers we use the total balance of our receivables (and do the same for other accounts too like payables, assets etc.)

But, in control account we also don’t keep the record of individual item / customer / payable etc. In the control account we use the total of each head like we do in general ledger.

Then what is the difference between control account and general ledger ? And why we need control account if using general ledger we can also make our trail balance and if it’s fulfilling the same purpose of control account ?

I’ve searched but didn’t find any satisfactory answer. I’ll be greatful for your help with thanks