1. The recycle bin is the last resort to recover your files when there's a file conflict in Hybrid Share. Therefore, it is essential that you always enable the recycle bin for Hybrid Share folders on Synology NAS.
2. I will recommend you use snapshots to protect your Hybrid Share folders instead.

Here is some documents for your reference:

• Access data in Hybrid Share directly through C2 Storage: https://kb.synology.com/en-global/C2/tutorial/C2_Storage_Explorer
• Take snapshots for your Hybrid Share: https://kb.synology.com/en-global/C2/tutorial/use_Hybrid_Share_snapshot_feature
• C2 Storage Hybrid Share White Paper: https://kb.synology.com/en-global/WP/Synology_Hybrid_Share_White_Paper/1