Hello @Klenti Toska !
Welcome to Microsoft QnA!
I must ask ,
have you added on the routing on the S2S the IP Address of the Private Endpoints ?
When using private endpoints it is best to utilize the Private DNS Zone , Link the zone with the VNET of the VPN Gateway, and forward DNS queries for the Private DNS Zone to Azure DNS
Try ping or Test-NetConnection to see whether connectivity is there
I suspect no connectivity since the Prvate Endpint is a special NIC assigned as a standalone IP Address
Please try this and let us know !
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I hope this helps!
Kindly mark the answer as Accepted and Upvote in case it helped!
Regards