Can VPN's really affect internet services?

I recently started to use Shadow gaming. They claim that using a VPN can affect the service. However, based on my understanding of how VPN’s work, this isn’t really possible unless they actively block them.

As I understand, all data leaving my computer reaches the service/website as it left my computer. It was just encrypted between my computer and the VPN server. So, it seems to me that services have to actively try to block VPN’s from working in order for them to actually make any difference in that sense.

Am I missing something here or are they just actively being malicious against VPN users?

Edit: I am not asking specifically about Shadow. It is more just a general question. I have seen several services claim that VPN’s interfere with their service.

Their FAQ already explain the concern was about latency

adding these servers to your internet connection can increase latency and even prevent you from using Shadow

and specifically, if you install the VPN client in your Shadow instance instead of in your local PC, it might not be set to allow incoming traffic and thus prevent you from even connecting to the instance.

You are missing something important …

“… A VPN works by routing a device’s internet connection through a private service rather than the user’s regular internet service provider (ISP). The VPN acts as an intermediary between the user getting online and connecting to the internet by hiding their IP address.”

Your data is send through the VPN provider sservers. If you select another country to pretend you are there, say you live in the US and you select UK, your data is send through a server in the UK.

I use a vpn on my local machine, and the same vpn as add on in brave browser on my shadow. Works fine.
Surely don’t install the windows vpn app on shadow.

VPN clients have been known to interfere with Shadow’s services. A VPN connects your device to a serverover the internet, and adding these servers to your internet connectioncan increase latency and even prevent you from using Shadow.

The first paragraph on the page you shared clearly states that the concern is not only about latency. It says that it interferes with there service and can even prevent your from using shadow.

Yes, I completely understand that. But how would that affect the service actually working unless they are actively blocking it?

So they get my data from a server in another location. How can that affect the service unless they are actively blocking that location or that server? Shadow, for example, explicitly states that that “VPN clients have been know to interfere with Shadow’s services.”