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There's a "I don't want to see content like this" option you can signal on content and I find it works quite well

If only they would respect that when you tell them to hide shorts. Drives me crazy that they utterly refuse to let you turn those off.

Get a browser extension that does it, I finally looked for one after clicking the "not interested" button one too many times.

If you're at getting a browser extension level, you're not too far off from also getting an adblocker and not having to pay for premium.