In the IPTV world, MAC addresses are used in two specific systems:

Apps like (available on Google Play and Amazon Appstore) allow you to use a virtual MAC address. However, this MAC is only useful if you pay a provider to activate it. You cannot "generate" a working one.

Many "free" generator hardwares or "cracked" APKs are bundled with malware or credential-stealers.

Using generated MACs to bypass paywalls is a violation of service terms and, in many regions, constitutes digital piracy. Better Alternatives for Reliable Streaming