Hola gente!!! @Pablo_Miguel_Martine and I have a little tweak to to @Lucas_Pires and @Robert_Petitto’s method called Trebuchet to create a comment/chat session in an app.
Here’s a short video of the result in case you haven’t seen it.
Also, @Robert_Petitto mentioned a conversation in which he was informed that on GTable cell can hold up to 1 million characters but a Gsheets cells can only hold up to (correction) 50k characters.
I hope this helps somebody.