Microwave link capacity

[jfmezei_nanog at vaxination.ca (Jean-Francois Mezei)]

In a context of providing rural communities with modern broadband.

Reading some tells me that Microwave links can be raised to 1gbps. How
common is that ?

I assume that cell phone towers have modern microwave links (when not
directly on fibre). What sort of capacity would typically be provided ?

And in the case of a remote village/town served by microwave originally
designed to handle just phone calls, how difficult/expensive is it to
upgrade to 1gbps or higher capacity ? Just a change of radio ? or radio
and antenna, keeping only the tower ?

(keeping spectrum acquisition out of discussion as that is a whole other
ball game).