I'm afraid that's simply not true, and you're attributing all of the rise in UK interest rates over the past two years to Liz Truss, rather than the fundamental factors that have increased borrowing costs across all the major economies. It does however appear to be a widely shared view on this forum, so I think it's worth actually providing you with some data to hopefully demonstrate this to you.
The Truss mini-Budget was a UK-specific event impacting UK government borrowing costs and so the only sensible approach is to see how the event impacted UK gilt yields against other comparable countries, in this case the US.
When Truss was appointed PM on 6 September 2022, the 5-year gilt yield in the UK was 0.51%-pt below that of the 5-year US Treasury (-51bp). On the day before the mini-budget the gap was -41bp, and on the day of the mini-budget itself (23rd September) that gap closed entirely (0bp). The gap reached a peak of +40bp on 10 October, Hunt took over as Chancellor on 14 October (the gap fell to -5bp), he reversed the mini-Budget on 17 October (-36bp) and after Truss resigned on 20 October the gap was back down to -64bp. During the remainder of 2022 the gap averaged -59bp.
That's a six week spike in UK yields relative to the US. I'm not trying to suggest that Liz Truss is anything other than barking mad, and this spike would have led to many mortgage offers being pulled around that time. But the idea that it is her mini-Budget that has impacted most mortgage holders in the UK, rather than the rise in rates seen in the US and Europe as well as the UK, is simply wrong.