What protection and upgrades do people fit right after buying?

• motor and gearbox cover guards — Mayak Lab, NICECNC, carbon or 3D-printed from the file in the pinned messages
• linkage guard
• handguards or bar-end plugs — the throttle is electronic and breaks in crashes
• a long seat cover with grip — the stock one is slippery
• a convenient box for the charger

The chain guide on the EX doesn't need replacing — it's thicker there.