I think it's not about tech, but about whether particular technologies centralize power or distribute it.
e/acc promote tech that gives power to Silicon Valley types, the State and VC bros/bankers at the expense of everyone else. Usually they are dismissive of or hostile towards technologies that empower the individual like Bitcoin and Nostr (technologies that they cannot capture).
Decelerationists maybe feel like everything is happening faster than they can comprehend and want a break. They forget that we need tech to fight against entropy; for the individual and species survival.
Effective altruism is the ploy that the e/acc crowd uses as a justification to accumulate more power. Who would dare oppose them if they have a 'scientific' method that maximizes the 'common good' (in theory, of course; individual freedom be damned).
I think it's not about tech, but about whether particular technologies centralize power or distribute it.