I suspect that computing (generally), computer-aided advances (generally), and access to information (specifically) have substantially improved average quality of life -- with major improvements on a large number of axes, even if other axes have suffered. To do a proper analysis on quality of life, we'd need to consider a worldwide population of 7 billion people with today's technology vs the technology of the 1940s. It's probably pretty obvious...

As a specific data point, we have a dramatically lower fraction of extreme poverty today than any time in the recorded history of humanity. Not causal per se, but a big inflection occurs around the advent of computers:

https://ourworldindata.org/grapher/world-population-in-extre...

This seems like a reasonable framework to address the title question in general.