I found this 2021 method to disable auto-arrange in folders in WIndows 10:
https://windowsreport.com/disable-auto-arrange-...
(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)Let me know if it still works. An earlier 2015 tutorial I had found when I first read your post by the best tutorial writer MVP Shawn Brink here: https://www.tenforums.com/tutorials/14856-enabl... says that it no longer works after Creators Update.
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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In other words - click and drag icon to where you want it located within the folder i.e., between other icons, etc.