Years ago, an elderly neighbour showed me how he transplanted seedlings into the garden in paper pots that he’d made. There was, he claimed, less shock to the root system. The young plant is established in the paper pot with seedling mix before being transplanted into the garden. I leave a cuff to act as a mini-barrier from the wind.
The same neighbour also spread seeds onto dampened paper strips. He covered the seeds with another strip of dampened paper. He then laid the seeded paper on damp seedling mix.