DeepFilterNet is fairly effective. Not quite as good as RTX Voice I would imagine, but it does wonders for my meetings with the duct right behind the webcam and the furnace right behind that wall.

EasyEffects supports it out of the box as long as the plugin is installed, and the Flatpak also comes with it bundled I believe.

That said, for recording, I would recommend applying the filter in post so you have the original to try different settings and get the best quality.