You’re right Chris. I disengaged from FB for much the same reasons in November 2017. And it has heavily influenced my blogging. Both writing about the small stuff, and the deeper content have increased by a lot. So welcome ‘back’ on the Indieweb side, outside the silos. Like you I do still maintain a FB profile (but an empty one, with its 11 years history discarded). Mostly because for some parts of my professional network, FB is the internet, and they have no reliable other way, other than email to reach out.
As you use WP, you may want to check out the IndieWeb plugins, especially the Webmention plugin, which allows you to follow conversations distributed over multiple blogs like in the olden days.