[PuppyTailWags]

I don't think most ads are critical to specific platforms, especially if those platforms take a sudden turn of ownership. I'm sure if Facebook got bought out, somehow, and the new ownership started telling all of their ad clients that they have literally no plan for them, they would also leave in droves. [My understanding is that this is what Musk effectively did during an end-of-year reestablishment of annual advertising contracts, thereby Twitter got a lot of clients leaving the platform.]