Still incomplete as basic Ascii, thus not quite a text font.
(I mean, it can be used e.g. for decorative abbreviations, titles, signatures… not in IT or for serious applications, sorry.)

This said, you showed us a great effort (not only in term of number of glyphs), even an improvement on what you could release one year before (e.g. "micro" [https://fontstruct.com/fontstructions/show/789497/micro_40] and "fs 3x3" [https://fontstruct.com/fontstructions/show/821977/fs_3x3_1]). I'd even say, it's a mix of your both previous trials (helped by Groszak's work and more courageous minds.). Besides, it's the most 'two-x-height-geared' of your 3x3 series (2 and 3 x-height designs are both feasible in a 3x3 grid - as I did in basic Ascii, of course). A selection of your 2 x-height glyphs looks quite nice (and coherent, limited to this quantitative restriction). "acgpqxy" hack too much the structural/positional/height lines. Your numerics are fairly readable as is (too many styles here in my opinion, although this kind of coherence can only be fine tuned in a further step of design, once almost everything look relatively smooth but need quite local changes, i.e. after your rules are found and rather solid).
Again, I keep several solutions of your "fs 3x3 02" (if only they were applicable once the font is complete…), e.g. "6" (square like your "P"), "7" (round like your "Q"), "8" (serifed "I" alike), "f" (coherent with your "e"), "mw" (negative), "q" (stylized "Q"), "t" ("+" dupe), "y" ("4" dupe)…
You provided a bunch of logical choices, esp. as pairs (mirrored "sz", "25" vs prioritized "SZ", "Q" as a filled "O", "L" narrower than "l", "d" [though not "b"] made after 3-dot wide "o", etc.); and a couple of hacks also (e.g. 1. "!" like a standard ":", thus your ":" looks like a dotted "\"; e.g. 2. "," like a crushed ";", while your ";" does not show the hack in the middle).

I stop commenting right now on this interesting trial, since you must have realized it's a little pointless (except for my tips, hopefully), until all the basic Ascii characters are provided (without duplication, a mandatory prerequisite, else a so-called text font could be released e.g. without vowels…).

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● REMINDERS by dpla

Steps of 'micro' font design (below ~20 dots):
A. select 93 unique glyphs ('safe' as binary);
B. improve your choices (loop to A. vs dupes);
C. upload as an actual font (your usable v.1);
D. add beyond basic Ascii ('optional' glyphs).

I stopped before C. (unreleased -good- fonts).
Most of the comparable works stopped before B.
opipik (etc.) blocked before the first step A…

Just to make people imagine it's long & tough…
Furthermore: “we propose > our users dispose”.
(More and more collective training is worthy.)