There are hundreds of wireframing / prototoyping tools out there, I tried many of them, I would still recommend Balsamiq for non-designers. It stays true to its core, to keep things simple and fast. Sketch & Figma will slow you down, so unless you need to create highly interactive prototypes or you want to do visual design, then I say, stick to it.
I recently gravitated back towards Balsamiq, as I helps me think at the right level, and not go too much into detail.
And love their licensing, I bought a license 10 years ago, and got ten years of upgrades. Recently they had their first paid upgrade in ten years, this is just unmatched in commercial software.