Found a cheatcode against these food delivery companies

I started using this app by rapido from the last week and honestly it is a cheatcode against Swiggy or zomato. No delivery fee,no platform fee. Same restaurant pricing on the app as well just 5% gst which I am more than Willing to pay. What do you guys feel. Also I don't think they can sustain this in the long run. What do you think? Will people start ordering of restaurants start taking orders through their own website or app and start their own delivery like in US.