The entire idea behind AP isolation and VPN is to block that.
If you want to control your PC you set that up before you leave with the choice or remote access system you like.
I’m living in an accommodation that only provides free public WiFi with AP isolation enabled.
I want to remote control my PC with my phone, so I installed VPN on a VPS and connected it to my PC.
I can use my phone through mobile data and connect to the VPN and then, control my PC. However, if my phone connects to the WiFi, it cannot ping my PC with its internal IP.
Does the router block the NAT transversal?