Mark -
You can try these latest guides purporting to remove Auto Arrange for folders in File Explorer:
https://www.softwareok.com/?seite=faq-Q-DIR&...
https://techcult.com/disable-auto-arrange-in-fo...
https://www.techsupportall.com/how-to-manually-...
https://technastic.com/disable-auto-refresh-aut...
https://windowsreport.com/disable-auto-arrange-...
(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://www.youtube.com/watch?v=UxyWtHqmMuI
If none of those work you can also sample these alternatives to File Explorer which might work better:
https://geekflare.com/windows-file-managers/
https://www.makeuseof.com/tag/best-windows-file...
https://www.maketecheasier.com/best-windows-fil...
https://rigorousthemes.com/blog/best-windows-fi...
Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.
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