Now you might think the AG won't have time for you, but the AG is not sitting there reading the incoming email and deciding to act. The AG clerk on duty will check that basic facts and dates are present in your email (make sure to include them), and ask the BigCo for their side of the story; all that before anyone even looks at the merit of the case. The BigCo will now face a choice - continue corresponding with the office of AG (which is billable lawyer time plus a drain on management brainpower), or shut you up by giving you back your stuff (which is free).
Probably just like everybody else.
Of course, Linux has a different set of problems. I just spent most of a day getting audio to work again on Linux after accidentally turning on HDMI audio. This is the 16-step procedure for fixing "no sound" problems in Ubuntu Linux.[1] It's a cut and paste of ten years of hacks for fixing sound problems.
(I took a stab at writing a sane audio troubleshooting procedure.[2] It doesn't have to be that awful.)
[1] https://help.ubuntu.com/community/SoundTroubleshootingProced...
Another $80 is still less than many other cloud providers for 4 years, and going down the Linux road is way too rocky for my preferences, though, may change.
The Linux road is pretty smooth for most things. And it has the advantage that it doesn't just disappear into thin air with no explanations....