An overlong `<title>` is a review signal, not an automatic SEO defect. Crawl the rendered canonical pages, find missing, duplicated, verbose, and templated titles, then rewrite the high-impact cases around intent and verify what search engines recrawl.
A canonical URL is the representative address search engines select for duplicate or very similar pages. Your canonical annotation is a strong preference—not an instruction—so redirects, internal links, sitemaps, hreflang, indexability, and page content must tell the same story.
Submitting a site is not a promise of rankings or even immediate indexing. It gives Bing reliable discovery signals and gives you the diagnostics needed to understand what happens next.