Dominik Schilling

Every time you edit and save a post the page will be reloaded. That means all scroll positions will be resetted. 
Not really UX friendly.
This plugin recovers the old scroll position in your Editor after saving. Either HTML or visual editor.
Sounds pretty good? Install now!
<h4>Feedback</h4>
If you want, you can drop me a line @<a href="http://twitter.com/ocean90" rel="nofollow ugc">ocean90</a> on Twitter or @<a href="https://plus.google.com/u/0/101675293278434581718/" rel="nofollow ugc">Dominik Schilling</a> on Google+.
<h4>More</h4>
Try also some of my <a href="https://profiles.wordpress.org/users/ocean90" rel="nofollow ugc">other plugins</a> or visit my site <a href="http://wpgrafie.de/" rel="nofollow ugc">wpGrafie.de</a>.

Preserve Editor Scroll Position

Recovers the old scroll position in your Editor after saving. Either HTML or visual editor.

Michael

Adds the Lenis library (by darkroom.engineering) to your WordPress page. Simply enable the plugin and it will add the library to your page.
You can use a function ‘smoothScrollLenisCallback(event)’ in your custom code that will be called by the Lenis scroll event.
Note: if you have popup with scrolling content you’ll need to this attribute <code>data-lenis-prevent</code> to the popup.
Credits: 
– Lenis library: https://github.com/darkroomengineering

Smooth scrolling with Lenis

Adds the Lenis library (by darkroom.engineering) to your WordPress page. Simply enable the plugin and it will add the library to your page.

Preserve Editor Scroll Position vs Smooth scrolling with Lenis