I get your sentiment, but facebook also acts as a spam filter - not entirely bad thing for business owner
You used to be able to see a custom feed of a selected friend lists but since they removed that option the site has been completely unusable, unless perhaps you do something like remove 90% of your "friends" and groups but that would hurt usability in different ways.
I liked more the Facebook that showed me the humblebrag posts of my friends/connections (and I'm not being sarcastic)
The topic is FB groups. They aren't spam, at least for those I'm a member. Some groups may be quiet, some are active, but I don't recall coming across spam posts from any of them. A particular group has a rule that members can promote their business once a week, enforced by the group's admin
If a business is only on Facebook, I don't do business with them as I don't use Facebook.
A win-win in my book, as I prefer doing business with people whose ethics overlap with my own.
But it's clear that continuing to use Facebook in that manner will only strengthen the isolation effect. Voting with your wallet and going against the machine invariably involves some level of personal sacrifice. For me, sacrificing patronage is incredibly easy to do. There is more to life than commercialization.
My girlfriend says she only uses Facebook to interface with small stores, who use it as a sole point of contact or distribution. Let that sink in for a moment. Breaking this cycle will require hard work.
I have avoided a place with only insta, simply because i couldn’t see anything I needed to.