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The Biggest And Brightest Supernova, Ever Observed, SN2016aps (3.6–4.6B Ly away), Resulted From The Extremely Powerful Explosion Of A Dying Massive Star (50-100 Times The Sun’s Mass). Discovered In 2016 Data By Scientists At The Center For Astrophysics & Announced In 2020, It Radiated More Than 5x The Explosion Energy Of A Typical Supernova.

Boom! Distant star explosion is brightest ever seen | Space

https://www.space.com/brightest-supernova-ever-discovered-sn2016aps.html

And it may be an odd type of supernova that has yet to be confirmed observationally.