While the system does have a CPU supporting PTT, the CPU is one generation too old to support Windows 11 (support begins with the 8th generation;  yours is 7th). If you want to run Windows 11, start shopping for a new system.
Good day, I have the following XPS 13 9360 laptop which I'm happy with. Processor Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz 2.90 GHzInstalled RAM 16.0 GB (15.7 GB usable)Device ID 7B0DD0F9-C072-46DD-A9D3-6B02835F07E0Product ID 00325-96125-00235-AAOEMSystem type 64-bit operating system, x64-based processorPen and touch Touch support with 10 touch points   Windows 11 precheck failed on TPM. Q1. How do I confirm if i indeed have this or not? Q2. If not, is this something i can install myself? 
Upgrade to Windows 11 pre-check failing