According to many articles and videos from experienced poker players, microlimits, both in cash and in tournaments, and other various modalities are only there to understand how to play better and by beating this level, we can go up to low, medium, and then high levels (if we reach to be a winning player at those levels).
I don't think it's profitable to be able to sustain your living expenses by playing microlimits. Although that also depends on the country you live in because there are places like Latin America that with a salary of $500 you can afford your monthly expenses calmly. That cannot happen in European or Asian countries, I think.
In my opinion, the microlimits are to be beaten and then level up according to the cash boxes you have or the buyns you have for tournaments.
Postscript: Greetings and apologies for my previous comment that was in Spanish, I thought that in this community there was an automatic translator, as I understand it. From now on I will try to Google Translate to English and then paste here.