L7 https ACL with APM SSL VPN not working

Do you want to use L7 ACL to filter URL inside a Network Access tunnel?

If this what you expect, the problem is that HTTPS is not HTTP with secured content but HTTP inside a TLS tunnel...

So until you don't terminate the TLS tunnel on the bigIP, you can't read the HTTP request, and so you can't read the URL...

when you create a virtual server with clientSSL profile, it terminate the SSL allowing you to read the HTTP request.