I've been thinking about doing a TL where Tamerlane dies early, so I wanted to first get an idea of how much he matters to history beyond several cities not getting sacked by his armies.
Constantinople would fell 50 years earlier. With Bayazid I on the throne, Ottomans can attack and conqer Hungary in1415-1420.
About th Golden Horde - there is two variants, becourse at the begining Timur helped Tokhtamysh Khan to unite West and East part of the country. But latter, Timur burned GH to the ground
Without being defeated by Timur, Tokhtamysh can save his Empire... for 50 years or longer.
Without Tokhtamysh, Hotrde might collapse after Dmitry Doskoy defeat Mamay at Kulikovo Pole. And Dmitry's plan to marry his daugher to the Jagello and unite Moscow and Lithuania could work
Without the Timur's extermination of the most Tatar sities, Tatar states - no only Kazan - might be stronger.
No Mughals, and, possibly, India never united