Sometimes, indie developers host free demos on Meta Quest App Lab (the unofficial side of the Meta store). If the developer is running a promotion, you might find "Aki Bonbon Demo" for free. However, a full "free download" for a premium avatar game is rare unless it relies on microtransactions.
Unlike flat-screen gaming, VR is intimate. Using shady download sources can lead to: Aki Bonbon VR Free Download
If you still want to try a low-risk search, do this: Sometimes, indie developers host free demos on Meta
Note: If Itch.io shows no results, there is currently no legal free version. Note: If Itch
This feature breaks down how to safely obtain the game, which version you need for your specific headset, and how to troubleshoot common VR issues.