Software glitch preventing software update

I think you can go to Settings > [Your Apple ID] > iCloud > iCloud Backup and change something there, like stop the Restore.

Your question is completely unclear. Here are just two examples:

YesJESUS wrote:

The software glitch that prevents you from restoring from backup

• There is no such "software glitch". Restoring from a backup works just fine.
• However, there are circumstances where it is not possible to restore from a backup. One example is when you create the backup using a higher version of iOS than you are trying to restore to.

preventing me from installing the software that fixes the glitch

There is no "glitch".

Glad that helped.

Enjoy your iPhone.