You can disable links using custom css. For this specific page you can disable the link using the below css code.
.lwp-breadcrumbs > span > span:nth-child(3) a {
pointer-events: none;
}
You can add the code in page settings > custom css. So it is only applied to this page.
However this is not something I can provide support for as each page might need different css code depending on the number of parent pages and which page needs to be disabled.
Hope it helps.
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