Internal Network Firewall Rules with access openVPN

I have a balance one and I have a problem with the management of the Internal Network Firewall Rules. The balance is managing several VLANs and among these, intra-vlan routing is enabled. The default rule is deny but some hosts are allowed to be reachable. However, if a user accesses the network via openVPN and is assigned an ip, they cannot reach hosts on the same subnet. Only by setting an allow rule from him (host ip) to any does everything work.

Is there a workaround to handle this? I would need an openVPN user to be able to fully access the network on which it lands or that it is manageable…