Hello,
Yes, I have tried also with http/https traffic, and also with negative result. Let me also link this issue with the one posted here: https://forum.free5gc.org/t/ue-not-able-to-reach-internet-in-ueransim/1296, it seems to be a similar issue. could it be an issue with the free5gc package versions used? GTP tunnel using IPv6 in UPF side, meanwhile network interfaces are using IPv4?