It would be interesting if a side effect of this proposed legislation, Android manufacturers stop pumping out new models as aggressively. It would make sense if that's how it turned out, because these manufacturers would effectively be crafting their own support nightmares by continuing to put out new models at a high cadence.

This in turn should make for better parts availability since the window that any given model is manufactured in is wider. It'd also incentivize sharing parts between models where possible.

All in all, positive for the end consumer. It might've been a problem in the earlier days of smartphones, but the category has more or less plateaued by now and so the benefit of high model churn with each new model sharing little with its predecessor is dubious at best.