I similarly switched from ST4 to Zed after using it for several years. I agree that good software eventually becomes "bugfixes", but if you expand the universe of ST4 out to popular plugins for specific programming languages, it starts to become really buggy. That's something I wish ST would focus on, make the most popular plugins more stable and continue doing that for the next decade.
I posted in the ST forum that achieving a stable configuration of plugins in ST4 seems more difficult than it should be, but they declined to take this on as a problem.
Meanwhile Zed made it pretty easy to achieve a stable set of plugins very quickly, particularly around language services, shell integration, etc. That's what prompted me to switch; however Zed has taken a few steps backwards in that department since they started spinning out language extensions into plugins that require more configuration and are more prone to breaking.
I posted in the ST forum that achieving a stable configuration of plugins in ST4 seems more difficult than it should be, but they declined to take this on as a problem.
Meanwhile Zed made it pretty easy to achieve a stable set of plugins very quickly, particularly around language services, shell integration, etc. That's what prompted me to switch; however Zed has taken a few steps backwards in that department since they started spinning out language extensions into plugins that require more configuration and are more prone to breaking.