Remove x86 code from universal app

I'm using macOS 12 on an M1 MBP. There are certain apps that are mostly code and not resource, very large in size, and not needed in Rosetta. Therefore, I wrote a script to remove x86 components from these applications. The script is very slow and the current way of checking that the applications still work is simply to open it, which is not a very comprehensive check. So: 1. Is there any other solutions, tools, or scripts that can perform this faster? 2. Is there a more thorough check I can perform to ensure that the application, after removing the x86 code, still works perfectly, and that I can delete the clone / backup I made before the process? Script in fish:

cd /path/to/application/bundle/
for i in ** ; lipo -extract arm64 $i -o $i.1 ; mv $i.1 $i ; end