

Not sure I understand - if you only have 3-4 packages you can just search for them specifically in the long list?
Even if you have 50 or 100s of packages, bash makes it pretty doable
comm -12 <(sort -u file1.txt) <(sort -u file2.txt) > common.txt
Should spit out only the packages appearing in both lists (done by memory so may not be 100%)






But then just don’t use google authentication and instead one of the FOSS alternatives? Aegis comes to mind.
Like the original reply to your situation said, you do you - but this seems a weird threat model to me, extra-step point notwithstanding.