Glad you got it working. For the future, since you installed it via a .deb, the Cursor apt repo is already set up in your system at /etc/apt/sources.list.d/cursor.list or cursor.sources, so you can update it with:
sudo apt update && sudo apt upgrade cursor
That’s the standard way for .deb installs, so you won’t need to download the package manually each time.
A couple notes:
- If you see the GPG error
NO_PUBKEY 42A1772E62E492D6(more common on Linux Mint), you can fetch the key from https://downloads.cursor.com/keys/anysphere.asc - Very rarely, the mirror can lag behind the website release by a day or two
If you hit the GPG error, the forum thread Installing Cursor via APT .deb Package Breaks apt update has working fix steps.