A block built once
T-Builder 0.9.20 saves any part of a page as an Elementor template and places it anywhere, live through the new Saved block widget or as an editable copy.
A row of three contact cards turns out well, and the next sentence is always the same: "make this a widget so I can use it on other pages". Until now the honest answer was to insert the same cards again by hand on each page.
Saved as a template
From T-Builder 0.9.20 the agent saves any element of a page, a container with everything in it, a section, a single widget, as a saved template in the site's Elementor library, under the name you give it, exactly as Elementor's own "Save as template" does. The library lists every block with where it is placed.
Placed live, or copied
Free Elementor keeps saved templates but has no widget to place one. T-Builder ships that widget: the Saved block draws the template each time the page loads, so a block built once is edited once and every page follows. The same block goes into block content as a shortcode. Where a page needs its own version, the agent inserts an editable copy instead, and says which of the two it chose and why.
Update to 0.9.20 from your account, or let the plugin update itself.