Limit max number of messages per page

I’m curious, in what situation do you get 50+ messages on a page? And is displaying them the usual way really that much better in that case?

In some cases, 50+ messages can be received per page. I.e. when the VBO finishes, I need to show a list of messages informing about the processed items. The list of messages using Toastify cannot be displayed properly because some messages do not fit in the browser window and the user cannot read important messages that disappear.

Can you start a MR instead of uploading a patch? Patches have been deprecated for quite some time on Drupal.org. Also, the patch seems to be updating a ToastifyManager class which doesn't exist in the 8.x-1.x branch.