Company Samsung Galaxy - how to check if I have proxy or VPN enabled?

I have the company owned Samsung Galaxy. I probably have MDM software on my phone - I see I have Knox 3.3 version, TIMA 3.3.0 and there apps: "Knox Analytics Uploader, "Knox Enrollment Service", "KnoxVpnPacProcessor", "Enterprise Sim Pin Service", WlanTest, "MDMapp". It is likely that administrators also use the Intune environment. From what I've read, MDMs don't have the access to things like downloaded files or internet history unless they connect the user through a VPN or proxy, is this true? In my case in the phone's settings under connections there's stance "No VPNs". Also there's "none" in proxy connection settings. **My question is**, can I be signed up to a corporate proxy or VPN without knowing it (not having the infomation about it in the phone settings I mentioned)? I would be very grateful for information from people who know about this. Thanks!