PS3 - Why are PS3 games listed on the XMB?

If you saw my other post, I managed to get Irisman to stand alone on the XMB without being in the PS3 folder. So I plugged in my external hdd and

Proto:PlayStation 3/0.83 XMB - The Cutting Room Floor

XMB organization is ill-equipped to handle any variety of game types, unless you want an ugly, wierd UX. Sane organization options highly desired! · Issue #629 · aldostools/webMAN-MOD · GitHub

PS3 - Why are PS3 games listed on the XMB?

PS3 game patches have reportedly started disappearing, ahead of Store closure

CES: In-game XMB coming to PS3 in 2008

XMB Package Downloader v0.70 (PS3 XMB Mod)

PS3: How to set and change video thumbs in xmb

PS3 emulator RPCS3 now boots the XMB

PS3 XMB Music Converted to SND0.AT3 for PlayStation 3 Games, Page 2