It is indeed Electron, but it has a much better linking story (don't even mention plugins [1]). Evernote being a native app was the last thing the held me as a paid customer with them. Also, the move to Electron was quite bumpy, they simply dropped half the features and it didn't recover until well over a year into the migration.

[1]: https://blacksmithgu.github.io/obsidian-dataview/