D7 {menu_router} admin entries      992
  admin/help/* skipped              81
  checked                           911
    matched by a D10 route          203  (exact 121, via parameter 82)
    no D10 route                    708

   2  CAPTCHA (D10 route differs)
   8  CKEditor 3 (D7 contrib)
   1  CKEditor Accordion (D10 route differs)
  15  Commerce 3: /admin/commerce/config/checkout-flows
   1  Commerce 3: /admin/commerce/config/currencies
  31  Commerce 3: /admin/commerce/config/order-item-types
  11  Commerce 3: /admin/commerce/config/order-types
  13  Commerce 3: /admin/commerce/config/payment-gateways
  50  Commerce 3: /admin/commerce/config/product-types
   4  Commerce 3: /admin/commerce/orders/{order}/… incl. payments/{payment}/operation/{op}
   5  Commerce 3: /admin/commerce/promotions
   3  Commerce 3: /admin/commerce/promotions/{promotion}
  18  Commerce 3: /admin/config/people/profile-types + the profile entity
   4  Commerce 3: /product/add
   3  Commerce 3: /product/{product} and /admin/commerce/config/product-types
  15  Commerce 3: coupons live under a promotion
   1  Commerce 3: no equivalent
  14  Commerce 3: promotions + price resolvers
  10  Custom breadcrumbs
   2  D10 Field UI merges field-settings and widget-type into one edit form
   2  D7 Media
   1  D7 Media browser
  21  D7 Media file types
 122  D7 default local task - D10 renders the tab on the parent route
   1  D7 webform -> D10 /admin/structure/webform/config
  17  Data module
   2  Date API (D7 contrib)
   1  Devel
   5  Diff module
  12  Facebook Tracking Pixel
   9  Features module
   1  Flood control
   1  Google Analytics -> D10 /admin/config/services/google-analytics
  11  Google Tag -> D10 /admin/config/services/google-tag
   2  Image block (D10: block_content with an image field)
   2  Libraries API
   1  Mail System
   5  MailChimp (D10 route differs)
   1  Masquerade
   1  Mime Mail
   1  Module filter
   1  Node clone
  22  Page manager
  25  Panels
   2  Reroute Email
   1  Responsive Menus
  33  Rules module
  12  Rules module (quiz feedback components)
   1  SMTP
   6  Schema module
   1  String Overrides
   1  Strongarm (D7 variables)
   2  Tab Tamer
  24  Ultimate Cron
   6  Views UI internals
   5  Views UI: D10 has duplicate/delete/disable; export and revert are config management now
   1  Views import -> D10 single config import
   2  Views templates (removed in D8+)
   1  Wistia settings - SEE THE REPORT
   3  admin_menu (D7 contrib)
   1  commerce_abandoned_carts - SEE THE REPORT
   4  core Actions UI (D7 has no configured action)
   2  core Ban (D7 {blocked_ips} is empty)
   2  core Clean URLs (removed in D8+)
   4  core Dashboard (removed in D8+)
   2  core Search -> D10 /admin/config/search/pages
   2  core Update manager
   7  core block -> D10 /admin/structure/block/library/{theme}
   1  core compact mode (removed in D8+)
   5  core date formats (D10 route differs)
   2  core date types (removed in D8+)
   1  core dblog: /admin/reports/dblog/event/{event_id}
   9  core image styles (D10 route differs)
   1  core menu link operations moved to the menu link entity
   1  core menu settings (removed in D8+)
  11  core node type + Field UI; comment fields move to the comment type
   5  core shortcut sets (D10 route differs)
  12  core taxonomy: /admin/structure/taxonomy/manage/{vocabulary}/…
   2  core text formats (D10 route differs)
   2  core theme enable/disable (different route in D10)
   2  core: /admin/people/roles/manage/{role}
   3  core: /admin/structure/block/manage/{block}
   1  core: /admin/structure/menu/manage/{menu}
   4  entity_view_mode -> D10 core Display modes
   5  flag ids are machine names in D10, not integers
   4  flag: /admin/structure/flags/manage/{flag} plus config export
   1  flag: D10 uses config export
   1  flag: D10 uses config import
   1  jQuery Update (D7 only)
   4  print_pdf
  21  quiz entity admin (business decision)
   4  quiz settings - SEE THE REPORT
   2  webform_mysql_views / D7 webform

Every D7 admin path without a D10 route is accounted for.