It said 3-5 working days when I added to basket but I couldn’t check out for 20 minutes when the website went down. After ordering I looked and they were 6-10 working days. Can’t work out what my final delivery estimate is.

In the UK there was consistently a 2 week wait on delivery for the steam deck, and I imagine the OLED will be the same if not worse. So that would make it 5+ weeks to make your informed choice. I think that is sufficient.