Left wing accelerationism, in political and social theory, is a class of ideologies that call for a drastic increase in and expansion of capitalistic growth and technological development to hasten an inevitable collapse of the status quo.
I am looking for some arguments in favour and against this idea to apply in daily life. Daily life as in for example should some software dev deliberately some buggy proprietary software in hope that its open source alternative seems more attractive, or should a product manager deliberately enshittify a proprietary product to make it more repulsive than open source one.


First of all: I don’t really know of any good sources, sorry.
I think your examples are more sabotage than accelerationism. From my understanding, accelerationism would be making the proprietary product more attractive and functional, so that it more quickly saturates the market and is forced to turn towards enshittification to continue posting growth. Literally accelerating the boom-bust cycle, not trying to skip directly to the “bust” part of the cycle.
From that, an argument in favor would be that it’s much more feasible to “get away with” than sabotage, as it is merely leaning into the existing trend. An argument against is that, so far, we’re not seeing many indications that the “bust” part of the cycle necessarily comes about in a manner that gives more opportunity for overthrowing the whole cycle itself.
It really depends on if the collapse of the status quo provides more opportunity for the oppressed or the oppressors. I don’t know enough myself to claim that things will go one way over the other from our current context.