No automated mod manager for CS2
Counter-Strike 2 runs on Source 2, which has its own Steam Workshop system for maps and community content — but Spawnly doesn't currently offer an in-app browser or automated installer for it. The Mods tab won't show a Workshop catalog for this game the way it does for ARK: Survival Evolved or a few other titles.
What's actually confirmed to work
Source 2's addon and Workshop system is structurally different from the classic Source engine used by older titles, and there's currently no confirmed, tested path in Spawnly for installing community plugins or admin frameworks on CS2 — anything resembling the SourceMod-style setups used on classic Source games hasn't been verified to work the same way here.
If you want to experiment, the File Manager (Files tab) gives you direct access to your server's files. server.cfg in the root folder is a safe, confirmed place to start — it already sets baseline match rules (sv_cheats 0, mp_autoteambalance 1, mp_limitteams 1) that you can edit and save directly. Beyond config tweaks like that, treat any manual addon installation as unverified and experimental — we can't confirm a specific mods folder path for CS2 works as expected.
Back up your server before experimenting with manually-added files. See Managing Backups & Restoring Your Server.
Next steps
See Getting Started with Counter-Strike 2 on Spawnly for software and default config basics.