Guide Are Tata Play and Jio Fiber Routers as locked as Airtel Fiber's?

Bro jio fiber router is very bad doesn't has any feature that a modern router has
You cant even make bridge connection
And if you do any changes some error occurs next
So just using at factory settings
Cause i don't have any other good isp at my location
 
So I have been using Airtel fiber for the past 3 years and everything was fine and dandy until recently when Airtel decided to push some updates to my router and completely lock it down. I can't even touch as basic setting as changing the default DNS.

I tried contacting Airtel Customer Support, but they pretty much said it's just the way it is from now on. I don't really agree with such policies, and I am planning to switch. But unfortunately, only Airtel, Tata and Jio are available in my society.

So I am wondering if Tata and Jio are also putting similar restrictions on their routers or is it just Airtel?
Get your own router, tell airtel to put their modem in bridge mode.