When one applies a glued patch they need to realize that the patch and tube undergo a chemical vulcanizing process and if done properly, will not cause any failure. The tube and patch will become one and you will not be able to remove it.

After you prep the area with a light sanding apply a thin layer of glue and allow it to set and by this, it should not feel tacky. This setting time depends on ambient temperature and in cooler environments the set up time for the glue increases.

Apply the patch and roll it out with a tyre lever to ensure no air is trapped, remount the tyre, inflate and ride.

There is no need to wrap tape around a patch if it is installed correctly.

The time it takes to patch a tube is not much more than swapping a tube, very economical, and environmentally friendly.

I carry a spare tube in the event I suffer a catastrophic tube failure and in many cases the "new" tube goes in and the old tube gets patched when I have time to mend it. That tube then becomes the new spare.

I experience very few flats... I run Schwalbe Marathons on my high mileage bikes and have been flat free for many thousands upon thousands of km.