Start-up page setting does not account for pinned pages

Start-up page setting does not account for pinned pages.
To reproduce:

  1. Pin one page (I did Google Calendar).
  2. Close all other pages.
  3. Set start-up to begin with that page.
  4. Close browser.
  5. Open browser.

Expected result: One page open, pinned.
Observed result: Same site opened on 2 pages, one page pinned.

Brave Version: 1.62.153 Chromium: 121.0.6167.85 (Official Build) (64-bit)