No. First of all we don’t know which microbes and in which quantities we want. We have more or less no clue what constitutes a good microbiome. Bacteriophages also seem to play an important role that we know even less about. That’s the beauty of FMT—we don’t need to know!
Second, most microbes in the gut are anaerobic and thus cannot be grown easily. There is not a single anaerobic probiotic available at this point. That’s why probiotics don’t come even close to replacing something like FMT, which is done suh that bacteriophages and anaerobic microbes survive.
The problem of “growing artificial poop in the lab” for e.g. FMT pills, is similarly difficult/impossible at this point like growing ordinary “dirt”.
One trick helpful to me: Do this in your native language. Many aren’t native English speakers, but because so much they read about emotional growth and many of their “emotional growth conversations” are in English (bc most EA/LW meetups are in English, even e.g. here in Germany), it can be tempting to do Focusing in English as well. In my experience, this is a mistake.