Did searching on them and spent time and footwork trying to solve myself.
But this ole' brain is down to it's last 2 neurons rubbing together for heat

1) When right click Open,Save,Perferences,Properties,etc. in Application. The Dialog box is huge and matches application size.
Have to manually resize down to proper size. Rerunning app back to same problem.

Don't want to have to manually set remember size & position for every dialog box. Is there an easier way?

2) in my Home folder all the .folders are faded and harder to read compared to pics,docs,etc.. folders that appear normally.
Anyway to disable that?

3) KDE Menu Editor See all the menus in left pane and option to delete but not hide? or not show in menu. Wanting to hide individual programs and trim down what I don't use now. But don't want to delete as may wish to add them back later. How do I achieve this.

Any help on these issues is appreciated! And have a Goody Day!

1) all applications? what "Application"? look in systemsettings -> window behavior -> window rules, to see if there's a defined rule that could be causing this.

2) try Krusader

For #3 there is a solution, but it does require the creation of text files manually on disk in the appropriate format, and will hide the applications from the menu editor as well i'm afraid.

re: #2
Bug 305734: Fix the problem that selected hidden items are hard to see with certain color schemes. See git commit 572513a1, review request 110164.
https://bugs.kde.org/show_bug.cgi?id=305734