PayPal, New account vs old account?

I've been using PayPal for more than a year now to transfer money from Upwork to my bank account.

I have a full time job in upwork.

Since I've read many people complain about how PayPal holds money for a long time.

I'm worried about this when launching my store. Dropshipping store to be specific.

My question is, does having my account already been in use for more than a year helps? Or are they going to hold the money anyways?

Also, for what reasons exactly do they hold the money??