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That’s kind of what I meant. I was more advising not to get involved in taking a bottom bracket apart unless needing to. Unseizing it if frozen with something to just get it moving again or leave it alone.
If you’ve tried fixing stuck bottom brackets I’m sure you would agree it would put anyone off doing anymore and kill a project off pretty quickly if they can’t get any further. If it all comes apart that’s fine but in my experience, they rarely do just come off, even with the right tools.
Taking it out, clean and repackaging it with grease, or if you don't have the means to do this leave as it is. GT85 will flush out the remaining grease, you'll get a few rides maybe but after that it will corrode very quickly.
TL,DR don't spray GT85 on bearings, use it only to unstuck the thing and repack it with more grease.