> seen their shipping from China to Europe quintuple

It's actually gone up about ten fold since the beginning of 2020.

For a long time a 40ft container from China to the UK was in the region of $1,500-$2,000. By about November 2020 that had increased to around $7,000 and then in January quotes were coming through of up to $16,000. I think it's been fairly stable in the $15,000 region for a few months now.

The last I heard this is expected to continue for several months.