Hi @timmis ,
According to [https://laptopmedia.com/series/acer-aspire-3-a315-34/|this] it has a M.2 sata SSD so presumably it has an M.2 sata slot.
An M.2 nvme will insert into the slot but it won’t work due to different protocols being used.
An M.2 sata will most probably work in an M.2 nvme slot but only at sata speeds.