Hard to give a straight answer without poking under the hood.
Elementor for header/footer in the current theme? That'll be the first thing to bite you if you switch without checking.
If you've touched zero files in the parent theme and there's no child theme in play, yeah, it's simpler. Still not a free pass.
Best move: spin up a staging site, swap the theme, then see what screams and what doesn't. Quickest way to know what you're in for without trashing your live site.