There needs to be an easy to use low-cost, possible also advertisement driven, alternative that business can latch to so more can leave facebook.
I actively refuse to support Meta and block all their domain names in case of clicking on a tiny URL that sends me to their site. It also helps block their analytics used by 3rd parties. I will forever be a sunk cost for them.
Anymore, putting up a basic template page for your business is maybe 2-3 hours if you're really non-technical. Sure, it will be just the basic template, but there's very little need for more customization than that. That hypothetical coffee bar really just needs a place to post hours, their menu, and maybe update with specials if they're ambitious. That's about all you get with a Facebook page anyway, there's zero customization.
Example; I have been at a local restaurant were the WIFI was not working properly so they could not do check out at the table. You and I would know how to fix this with placement and picking equipment. The whole restaurant staff did not. Number of the staff were younger and grew up with the technology.
Like, even in its heyday, it was such an attention trap, and it had very negative effects on the people who got addicted (especially teens).
But the site has gotten so much worse in the past couple years, and its brand is in the garbage. Maybe that's all for the best -- it was never really worth preserving.