I copied the Note ID, pasted the link (without (nostr:) on delete.nostr.com app confirmed via nsec.app reloaded my timeline both on Amethyst and Primal and voilá - NOTE DELETED.
Derek if you have more useful apps which work with nsec.app authorization please share a list with us (please include nostr website app) I complete lost that note/link because I didn't bookmark it. Need to use that bookmark button more often.