I made “real” columns and on my iPad and Android I can’t type a decimal in form or table view. But sometimes on my pc, in table view, when editing a field it works. To clarify that, when entering data for the first time in a field it doesn’t work. But if I go back into a field to edit it, I can type a decimal only on my pc in table view...sometimes.

I think “sometime” is when 2 digits are in the field and you add the decimal as the 2nd character you can type it.