The scroll list is regular #anchors links (Very simple). See her (And google it):
Accordion
Next this is accordion widget. For now you dont have this idea on Webflow - but you could solve this by custom code (search on the forum about this topic + see example her or related Q)
Webflow will work with any Accordion JS plugin you find (Jquery or vanilla-js).
Style
The style of the accordion Heading & content - is regular CSS (In your reference mix of float: left and width of 48% for the content. Inspect elements on Chrome).
CMS
Start from the basic. Next think how to integrate this idea with Webflow CMS (Start from static content).
Freelancers
List of freelancers-list her (No way to solve this by Forum Answer - this is more “small” project). Or add freelancer-job to the forum.
Thank you @siton_systems though several things that are still not clear:
I am not able to use headings as a link? (basic but curious question?) as my list is a series of headings (H1)
Even if I insert a standard LINK and follow your suggestion it does not define where and how to align the clicked on list item and scroll it up to meet the work ‘observations’ that should remain fixed at the left?
lastly… I am trying to avoid any custom code… for an accordion feature, can I use an expanding animation of a div? expanding and pushing the content below once the scroll to animation is complete?