With the help of Claude I created a "Geo Visibility Switch" HDA for those that want to animate the Render and/or Display visibility of multiple Geo nodes at obj level.
So this one works without having to connect all geo nodes to a Switch node at SOP level , after first hiding and then importing the objects to a new Geo node.

Just select all the objects you'd like to control , then select the "Geo Visibility Switch" , click "add selected geo nodes" and drag the Switch Index slider.

Initially the Switch Index slider has a range of 12 objects , but just type in a higher number if you added more objects. With the "Mode" selection you can switch from single item visibility to cumulative, so it grows the visible objects selection from 1 to all.

Just unzip and drop the HDA into your "C:\***\Documents\houdini**\otls" folder.

https://toonafish.gumroad.com/l/muugat [toonafish.gumroad.com]