domain issue

Hello

I changed 3 sites from homestead.com to just dot com

Everything went fine ..... hooked them up with Google Search Console ..... and successfully published site maps using xml-sitemaps.com.

But I still keep getting the same Google prompts for all 3 to specify the "canonical url"  ie. they still think the new urls are just duplicates of the homestead.com's.

Latest twist ......

One of the sites is now appearing on Google under the headline of "Homestead Technologies" ( put "tvherbs.com" into search ) -just 3 random pages and not even the index page !

Your Google listing disappears overnight thru no fault of your own .... you jump thru all the required/recommended hoops to get relisted ..... and still chasing your tail. Sigh.

Does anyone have a solution please ? ..... which is the polite version of this > https://www.youtube.com/watch?v=E-PIidaqCyU&ab_channel=Movieclips

My obvious thanks if you can help !