Sanded one time with 240 grain and 3 times + feeling and fixing missing edges:
First coat of oil:
Research and instructions on the oil can now have led me to this approach: oil one side, wait until drawn in (20-30m), clean up excess oil and then do the other side.
I want to do 3 coatings but for the additional ones I clean up excess oil immediately. Can’t wait for the result.
I remembered that a friend of mine lives in a flat of his parents house (real flat that could be rented) and maybe there’s some kind of workshop room they have I could try and ask to use for the next project.