So if I post the same thing on Facebook and Instagram that is plagiarism? Really?
And by the way, I've always 100% of the time changed the meat of my content that being photos, except once bringing photos back old photos from a trip to Ukraine showing people not wearing facemasks in the "old norm" just to start engagment, what a crime! And that post I changed the words. Now blacklist my ass! and run my money off the platform.
I'm getting real sick of stupid.
I'm not sure about all the nuances and how things work with photos tbh and things are/should probably be treated differently when there is no monetary gain being made, as in the case of Facebook and Instagram. I think thats another case really, but I'm also not an expert on the matter lol.
If you're writing something new, like a whole new post, then it's not plagiarism either. The way I read it originally in your post, was that you are copy and pasting the same article on both sites, which is plagerism and which, in my opinion, doesn't look great.
I'm not trying to be the police here or anything just giving my opinion. Take it as you wish