Installation -programs remove

For the life of me, I can not understand why the installation remove programs at the end. I undertand that gparted is remove by almost all ubuntu base, but why the wifi drivers. Before installation, the wifi works great, but after installation, the driver is gone. Had to re-install it. BTW I installed Core. I had pro before, but had some issue and decided to go with Core. The only problem I found - Firefox keep shutting down. Remove and reinstall - works ok. Sometimes the airplane mode kick on for no reason. Why I could not find VLC and gparted in software store?. I use synaptic to install those software.

Changed from Installing to Feedback.