But in essence: Share the files, make a copy once shared, delete the shared file and only the copy exists.
Better though: Don't use Google Drive for business critical docs if you're not a very high spend Google customer able to talk with an account manager. If you're a small/hobby user or individual, keep critical docs offline as well as online. Just consider it part of your business continuity plan.
I'm not saying Google is great: what I'm saying is that once you pay even for the smallest business suite, you get to get actual people on the phone who are there to help you.
I set up a business account in one country and then moved to another country. Several years later I need to re-enter credit card info. It doesn't let me now because my billing address is now from a different country. Google's only solution? Create a new google account.
But are you sure about this problem? If you create Shared drives in a Google workspace, they take ownership of anything I move into it (after dismissing a warninge explaining what will happen), even if I take files in folders shared to me from someone else's gmail account
(The ownership model of drive was indeed terrible before they implemented the shared/team drives.)
...Only to find that you can't transfer ownership of a Google Doc from a Gmail account to a Workspace account because "security."
So at this point we have docs scattered across all kinds of Google accounts and domains which is the least secure thing I could imagine, great job Google.
100% in support of regulating the pants off of this company as well as evaluating alternatives to them.