Bypassing Jio Fiber Router/ONT -Guide

To people who have switched to TP link XZ000-G3 from Jio's ONT+Router have the speed been stable? I have 1gbps plan and lately the router has been very unstable. I have to use a VPN to get decent speeds.

Dunno if its the Jio ONT or just bad routing in my region.
 
Guys before I invest in this tplink gpon router.l, I want to know from people using it, it working properly?

Also saw this recently uploaded video:

Will this work?
 
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