Star Wars: Obi-Wan Switched Lightsaber Forms After Qui-Gon's Death

After a devastating event in Star Wars
After a devastating event in Star Wars' Prequel Trilogy, Obi-Wan switched his lightsaber form to a different style.

Everything About Obi Wan Kenobi Lightsaber - NEO Sabers™

Obi-Wan Kenobi series: Guide to new Star Wars series

Yoda - News - IMDb

An explanation of the seven forms of lightsaber comba

Star Wars Duel of the Fates Funko Pop Series Concludes With Qui-Gon Jinn

Star Wars: Obi-Wan's Greatest Jedi Mind Trick Was His Final Fight With Maul

The theory that Obi-Wan had qui-gon's lightsaber in his possession has been debunked. for some time.

Star Wars: Obi-Wan Kenobi, Qui-Gon Jinn Star in New Dark Horse Graphic Novels

Qui-Gon Jinn, Wookieepedia

Speculation: A Darth Maul & Obi-Wan Kenobi Rematch May Be in the Works. - Star Wars News Net