1. Package management / Extensions. Vscode comes with this right away, Sublime you have to install a package manager to manage packages...-sigh-
2. File icons. (this may seem dumb, but man it should be a simple thing to have defaults for...)
3. Git integration (though seems they may have caught up on this?)
These are just off the top of my head...
Edit: spelling
> File icons
https://packagecontrol.io/packages/FileIcons
> Git integration
Of which the only support answers online are "uninstall plugin/test". So I had to choose which plugins to keep for certain features/functions. It was too messy.
Sometimes I couldn't tell if it was the base features of Sublime that were conflicting with a plugin, or two plugins conflicting...
The seemingly unfixable bugs from plugins are what pushed me towards VScode. Where even if there are plugins/extensions, I need fewer of them, so less likely to have conflicts.