I did this on three different systems, all with different hardware.

I started Trinity and accepted all defaults for a fresh profile. I then exited Trinity and rebooted each machine.

I logged in (command line), flushed the kernel cache, ran free, started Trinity, opened konsole, flushed the kernel cache, and ran free.

The default memory Trinity footprints, which excludes the memory usage before starting Trinity and includes the native video drivers:

* 111184 KB * 119536 KB * 134876 KB

Notes: I did not disable apps autostarted from $HOME/.config/autostart or disable the native video drivers. Thus the first two results on old hardware are closest to the actual default Trinity R14 footprint.

Darrell