I still use my PowerPCs on a daily basis. My trusty G5 sits at my main desk along side my much more powerful PC, but nevertheless, I still use the G5 for web browsing and checking my group chat using a TenFourFoxBox of Slack (which works just as good as the real app). I still use my PowerBooks as my usual toss-in-a-bag and go Mac laptop. Back in early 2015 when I first got into PPC, I used my iBook G4 1.33 as my daily school laptop, but that was before I knew about Erik's tweaks. Also at the same time, my crappy HP was somewhere in New Mexico being repaired, so I was using my G5 daily. I had 0 problems with using the G5 and likely still wouldn't have any problems today. The iBook struggled with internet back then and still does today, however, the tweaks did help. My 1.5GHz PowerBook G4 12in works better since it has a higher clock, but the graphics are really weak. I likely could still use solely PowerPC with ease