@ICantEdit For the most part, yes, Vowels have a slight tendency to prefer moving in the direction of /i/ such as in Greek, but there are plenty of exceptions like the French nasal vowels and Proto-Germanic. Consonants have some clearer preferences; they prefer to soften rather than harden, and two consonants next to each other prefer to move closer together (assimilation) instead of further apart.

@Glitchy999 Yes, I agree with what you said about the proposed change to /ɲ/.

Oh, and another point about fricatives becoming stops, it seems more likely to happen when it comes before another fricative. For example, the Proto-Germanic /sexs/ became "six" in English, with the /x/ becoming a /k/ in Old English.

Oh ok, this is really helpful

My new conlang evolved from a proto-lang that had zero consonant clusters, so some sound changes might not be able to be pulled off

Funnily enough, the same is true of the languages I am working on. Consonant clusters will be created through deleting vowels and compound words.

The only consonant clusters in the modern language are (C)w

Oh, and about /x/ /ɣ/ > /k/ /g/, this is because it fused with /q/ /ɢ/, which was turning into /k/ /g/

They were also around the same time as ancient greece and thus invented versions of phi for transcription purposes only

Though it does look a lot like some of the symbols for /ɟ/, and as writing this I remembered that in ancient greece phi made a /pʰ/ sound, oops.