There are camera and radio detecting devices available.

If it’s a problem caused by hardware, you’ll either want to repair or replace. It’s probably fixable by replacing the mouse switches but that usually requires some soldering.

Some people use qr reader apps that show them the contents of the qr code before allowing them to choose to open or not.

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People that take a bucket to the river for their water don’t have to worry about plumbing leaks. Not having to spend time gathering water is worth the time of dealing with plumbing for me. I feel similarly towards having to do surface level vacuuming vs the time of dealing with firewalls.

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GrapheneOS