Well, it seems to be official now. Starting April 14, 2025 Google will update its Unfair advantage policy to say it is allowed to show the same ad, from the same company, going to the same page, as long as the ad is in a different ad location. Google was just experimenting with double serving ads earlier and now it is officially going to be allowed.
Protip: you can also block a lot of those by enabling some “annoyances” blocklists in uBlocks settings.
And while you’re there, take a look at all the other blocklists they don’t enable by default. You might find something useful to you.