I need help with the Network Configuration

From my point of view your dhcp must start, for example, in 192.168.1.100 and ends in 192.168.1.254
Thins left a range from 192.168.1.2 to 192.168.1.99 that is reserved to devices with static ip, you will be sure that dhcp never will assign an address below 192.168.1.100 and all your VM and PVE can be configured below this address safely, no ip conflicts.

Yes you can choose a static ip you want the router will respond if it is on the same network, in your case 192.168.1.0/24, router no need to be configured if a new static ip is used, just don't overlap the address and all will work.
 

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