internet keeps dropping

I am on 1 GB plan and seeing only 100MBPS speed in my wifi.. I am using Google home router. Everything was fine before Jun 1st, there was some maintenance on Jun 1st in our area and after that it got messed up. Every now and then internet get stuck, getting dropped out of meetings. Cant watch world cup soccer without interruptions.
ALso I dont see any option to talk to live agents.. Stupid chatbot is not useful. Thinking of switching to some other ISPs