Yup. The second pic looks like someone’s poor attempt to relieve the trapped water. Looks like it’s just had a drill put through it.
These drainage outlets need to be 40mm waste pipe minimum and be kept clear.
Defo needs addressing properly but you’ll always have this runoff.
Working out how far down you can make the holes would help, as the lower the better, if you can do fewer larger holes, but smaller ones (32mm or 40mm) would need to be high and low to cope.