You and I seem to be remembering very different machines
I have, right now, in my house, an early 2005 G4, a 2006 (upgraded to a core 2 duo), a 2010, 2x2012s (server model, the quads, one runs my 3d printer today, serves it over the network), a 2018 (i5 hex with 64gb of ram, still being used as a fileserver and a host for a few test containers), an M1 (running Asahi), and an M4.
They’re all great machines, and they all are rock solid.
The only model I remember being a huge problem was the 2009 and its nvidia failures.
They werent ripoffs, under jobs or otherwise. You might not have been the target market for them, but that’s not the same thing