They do respawn, but independendly from Blood Moons. Unless they drastically altered the various respawn mechanisms between BotW and TotK, the only thing the Blood Moon respawns are enemies and equipment (weapons/bows/shields) in the overworld (all 3 layers this time - “overworld” refers to everything that isn’t the inside of a shrine/temple/Divine Beast)

Everything else respawns by one of various wildly different respawn mechanisms independendly from the Blood Moon

In case of ore deposists in BotW, it was a 1% random chance for every minute of IRL active playtime, and the same seems to apply to TotK. just keep playing and they’ll eventually be back, tho not necessarily all at once.