How to take long screenshot in Manjaro?

Can any one know how to take long screenshot in manjaro (Gnome desktop environment) like Andriod phone?
I try to take long screenshot by Zooming out ( pressing CTRL with - ) the content
But it reduce the content quality
If anyone one have some tool or any idea on it
then please share with me

That is not supported in gnome:

You can take a Full-Page Screenshot in your web browser:

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