There will be a lot of users having their first impressions with FC. I 'd argue first impressions (AKA the first few minutes to few hours) are the most important time period of SW usage, as based on that the user decides whether to stick with the SW - FC in this case - or not.
UX changes i propose and highly recommend FC having by the time v1.0 releases are:
- modern, dark and light UI theme - most people subcounsciously judge the age and feature-parity of SW based on the looks - therefore: if it looks like its 10+ years old, there weren't any updates in 10+ years. probably the best path to go here would be complete UI revamp, that however would require considerable amount of time and resources (possibly something the Epic MegaGrant i suggested few months ago could be used on ... also think about having full-time devs in general), so for now (v1.0) a clean and modern theme on top of the old UI should suffice. closest community theme to this i could find is ProDark. i recommend iterating on that
- modern icon theme - same thing as for the theme applies here. one really good icon theme i 'd consider using is the icon theme by user st_phan. some users might want to stay with the legacy (current) icon theme in which case icon theming would probably need to become a native (without plugin) feature of FC
- adjust background gradient so it reflect the new UI changes (AKA it looks clean and modern) ... possibly greyscale as shown in the first of the screenshots below ?
- getting started wizard - this would include which workbenches are visible based on whether the person chooses BIM or mechanical CAD; as well as theme selection (light / dark) and possibly the ability to choose using legacy icons among other things
- although i dont find this as necessary as previously mentioned features i recommend redesigning start page - at least to the point where it aligns with the new UI theme (both dark and light)
- also not as important but while browsing this forum i ve noticed that on some screenshots the outline of modelled objects looks a lot sharper then default; i dont know how this is done (whether its some plugin ...) but it looks a lot cleaner
screenshot taken from forum: default: - update the manual for v1.0 prior to its release
- update the website (with new screenshots at least)