Windows 10 Insider Preview Dev Build 21359.1 (co_release) - April 14  

sultanofswing said:

Is there was a way to get rid of the watermark on the Desktop, I use a LG OLED and keep an icon free dekstop to avoid any image retention. Would be nice to remove that watermark

Yes you can

windowsq.com |how-to-add-or-remove-windows-build-and-version-watermark-on-desktop

This is new on power menu. Toggles whether apps are reloaded. Only seems to work on built in apps.

sultanofswing said:

Is there was a way to get rid of the watermark on the Desktop, I use a LG OLED and keep an icon free dekstop to avoid any image retention. Would be nice to remove that watermark

Image retention it appears is not the problem it was, at least not according to my LG OLED CX 55 purchased this year.
Inbuilt under OLED Screen Saver are....Pixel Refresher, Screen Shift, and Logo Luminance Adjustment.

Shoot, this was one of slowest updates in a while.

At the end of download, at 99% internet went out but it did continue with installation, only at first reboot internet started working again.

Quick Update for me which included a second NET Update...total time 45 minutes.

Guess who's back !