The UK is extremely litigious in regards to libel. Her lying would be an act of public libel against the crown prosecutor. She went on TV to talk about it. It's been well covered in everything from the IB Times to The Sun to the Daily Mail (as linked above), as well as fully televised on Piers Morgan. Naturally the team you obviously root for can just refuse to cover any prosecutions which are embarrassing for them and you can simply smugly say "well it's not in any source I personally recognize as valid so it didn't happen."
It's not ad-hominem it's ad-practices. For all you know every single one of those articles is based on the same half-baked rumor.
https://en.wikipedia.org/wiki/International_Business_Times
All the sources you claim have standards repeated corporate-state lies during COVID (I know this because they all did). They have zero integrity, they are just mouthpieces for a government that would cover up its lies and never have accountability. I am not GenZ and your assertion that this is a generational issue is another form of ad hominem attack, showing your own personal willingness to dismiss speakers on the basis of perceived identity, as well as fraudulently attribute their speech to groups that you perceive as intellectually lesser. Regardless, it is her word and the case records against the UK government. The latter has been caught lying countless times and is immune from prosecution for doing so, while she and the publications in question can be held accountable for any false claims. Ergo, they have skin in the game, they are taking the risk, and the government is not, and you should assume that she is telling the truth as the incentives are aligned with her to do so.