All of these Home Loan planning are just futuristic assumptions

Although the influencer isn't wrong in the calculations, but the words are just wrong. The person is paying the standard interest rate. In other words, if you make 10L from interest from FDs/RDs and purchase a car of 10L, doesn't mean you bought the car for free. You don't have the 10L, you spent the interest that you earned from your FDs/RDs on the car. The person doesn't have the 39L paid as interest. The 39L has been offset by the money made from the market, that's it. Instead of 4k a month, you can invest a bit higher, you can make money equivalent to the price of the whole house. That doesn't mean you are getting the house for free. What the influencer actually didn't consider is you can save money by availing tax benefits for your loan [ depends on tax regime ] > which shows that the person is a scam/doesn't know/amateur/inexperienced.

Some new finance influenza is it ?

Hii @BiryaniEnthu, please invest aggressively on quality instruments as per your risk appetite in case you aren't already. Please don't sell or panic during tough times like the covid, rather you should invest more during such times. In the long run, you will see how your investments sky-rocket.