Outside of officialdom, nobody actually knows how many people are in hospital because of COVID, whether omicron or otherwise. That information has been deliberately obfuscated since forever. Rochelle Walensky just the other day: “Many of them [children in hospital] are actually coming in for another reason. But they happen to be tested when they come in and they’re found incidentally to have COVID…".
The same is true of adult hospitalisations, deaths, and other complications. UK death statistics are more noise than signal because of the criterion used (“death within 28 days of a positive test”). They could clarify this in the statistics if they wanted to. But they don’t.