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As a (mostly) former web developer, I've always maintained that it is/was a bad idea to rely on ANY one platform to buoy your business (or use as your preferred method of communication). Everyone should have a private website for things exactly like this.
You can learn ALL this stuff from books, which are mostly free (the library), and doesn't need to be online to operate.
f you get de-platformed, then what? Always have a contingency plan, because the internet is a fickle mistress. The gold standard of any internet presence is a great website, bar-none. The best thing you can do for yourself is have a solid body of work, the above, and good SEO.