The instance has clearly communicated that it primarily serves as a test instance, i.e. it does not strive for or want to guarantee stability.
that's just not true > when c.s switched over to dev branch in april 2023, this was not motivated by wanting to become a "test instance" > rather, this was a desperate move to keep the instance afloat which by then had been become quite wonky > afterwards, things got even worse, so the transpicuous idea to rebrand the whole project
noting, absolutely nothing about f.s is about being a test instance > see also atomicpoet's post about movin away from f.s - f.s was supposed to be a flagship instance, but only evolved into a shipwreck
the biggest disadvantage of firefish: its community which has become like a sect - but that had been going on for a very long time already ...