I'm not the only one to recommend owning the content you produce in the course of your business development activities. Fred Wilson is also of that opinion.
While people with very large followers (say Joe Rogan) can move to any platform and take along with them the majority of their fans, most people who aren't major celebrities cannot. While social media platform can be great tools in their own right, you are too dependent on someone else's whims if that's your only way to communicate.
This is especially important for people for whom reaching their audience is a critical part of their business model. I cringe when I see Youtubers with large followings and only one platform as the source of their revenue. If, for any reason, they get the boot, they're screwed, losing all their hard work in the process.
To this I say: get on social media as much or as little as you're comfortable with, but always try to use these platforms as funnel to a property you own, not as the main source of content and interaction. If one disappears, your content will still be available and your marketing ecosystem will be much more robust.
It's even more critical in times when everything online is made political and where hordes of rabid, thoughtless trolls will try to cancel you for merely expressing an opinion. When you own your platform, you become uncancellable.