Crashes, Cookie-Issue, Back-button issue, and warrning / errors

The PayPal Plus plugin has a few of issues and the support isn’t helpful.

First of all a iframe will be included. This iFrame loads data and set PayPal cookies instandly, even if Paypal Plus isn’t marked as default payment option. (possible violation GDPR).
This was reported by other users -> Ticket cloesed by inactivity see here

Often the transaction fails because of “Impossible to update the order, payment id is not valid.” See my Optinion here.

I tryed to contact the Support by Email:
The support is not helpful, because they basically say to remove all plugins (but also to install a spefic theme). They do not even try to debug. They do not think of the fact, that it might be impossible to remove all Plugins (WooCommerce is a Plug-In too) or that is no good idea on a productive system.