So during the Lubuntu 16.04 (ppc) liveCD boot process, I get a message about invalid ROM contents in Radeon. Then a lockup a few minutes into desktop navigation.

However, this does NOT happen under MorphOS(demo). Only glitch I had under morphOS(demo) was the Work: icon had a garbled backdrop for a while. A few reboots and it's been fine.

Lubuntu and MorphOS(demo) are like a thousand times faster than 10.5.8 lol