Your system information

• Steam client version (build number or date): Apr 16 2020, at 23:16:21
• Distribution (e.g. Ubuntu): Arch Linux
• Opted into Steam client beta?: [Yes/No] Yes
• Have you checked for system updates?: [Yes/No] Yes

Please describe your issue in as much detail as possible:

Can we have filter for collection to separate external SourceMods?
Also filter for non-steam games would be great