Generally, does timing of transfers matter? (Any advantage to end of 1st semester)

[rip7774]

Does it matter if players transfer before second semester? Like could guys play somewhere else second semester or is the transfer policy not that liberal yet? And if they can’t, is there any advantage to going at end of semester? Didn’t Javonte Brown Ferguson go after semester one last year or am I misremembering? Fishy’s tweet got me a little nervous about it.