Maybe giant lens?

https://www.legacysurvey.org//viewer/?ra=199.2065&dec=75.6697&layer=ls-dr9&zoom=12

It doesnt have anything obvious that its lensing around, but if its not a lens, I have no clue what in the holy hell this thing is…

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Chance alignment of starburst galaxies and their interaction trails. Must be a billions-to-one chance of that happening.

If it was actually lensing, a lens of that strength would almost certainly produce more arcs than just those few, and they should be more symmetrically arranged around the lens centre.

Neat find though.