Nope. In 2024, Biden himself confirmed it:
"When I originally ran, you may remember, Ed, I said I was gonna be a transitional candidate, and I thought that I'd be able to move from this, just pass it on to someone else," Biden said. "But I didn't anticipate things getting so, so, so divided."
Biden had referred to himself as a "bridge" during the 2020 campaign.
"Look, I view myself as a bridge, not as anything else," Biden said at the time. "There's an entire generation of leaders you saw stand behind me. They are the future of this country."
What else could he possibly mean by that, especially when he's discussing in retrospect and openly acknowledging it? Seems awfully obtuse. But here, let me try spelling it out just a bit more, and beyond that I'm done trying:
Your references to 2019 are irrelevant. It was already reported by Politico that four people speaking regularly with VP Biden had privately told the mhe was unlikely to run for reelection in 2024 -- this was likely to assuage concerns of liability for his age when that time came.
There was a particularly famous press conference Q&A of his, July 11, 2024.
Naturally, if using the tiniest bit of logic, you can surmise two things:
If you're still not connecting the dots then I don't know what to tell you and I'll just chalk this up to either willful ignorance or rage-bait.