Urgent: 3 Critical Finder Issues (Sonoma) Impacting Productivity

I have been an enthusiastic macOS user since 1984 — though it seems more appropriate to say "I was".

Over the years, I’ve seen many invaluable Finder features and brilliant built-in apps like Stickies and TextEdit loosing essential features.

I rely heavily on Finder as a powerful, customisable database for organising my work. My workflow involves:

• Managing filenames and folders in List View to maintain a clear, structured overview.

• Simultaneously viewing multiple (10+) folders/windows, moving items, renaming files, and creating aliases.

•Working exclusively as the sole owner and user of my Mac mini.

However, these three critical Finder issues are severely disrupting my workflow:

1 Permission Errors on Saving Files

   Irregularly, when updating the contents of simple text files I created. Upon saving I get the error stating:

   "You don’t have permission to write…"

   Even restarting Finder doesn’t resolve the issue.

2 Windows Minimising to Thin Strips

  Occasionally, Finder windows suddenly minimise into a thin stripe along the nearest screen border without warning or input.

  I cannot find any way to disable this feature permanently.

3 Unintended Window Merging

   Dragging Finder windows often causes them to merge with others automatically, disrupting my organisation.

   Again, I cannot identify how to disable this feature permanently.

These three issues are costing me significant amounts of time every single day.

I hope you (or Apple itself) can provide guidance or solutions to address these critical usability problems.

Thank you in advance.