TARDIS 2 (The Timeless Children)

A TARDIS was still present on Gallifrey following its devastation by.

As Ko Sharmus prepared to sacrifice himself to detonate the death particle to stop the Master and his army, the Thirteenth Doctor fled into this nearby TARDIS and escaped the planet before the explosion destroyed all organic life. The Doctor flew the TARDIS back to the refugee planet where she had parked her own with this TARDIS' chameleon circuit causing it to assume the form of a tree. The Doctor complimented the TARDIS' chameleon circuit before abandoning it, stating that she could think of worse places to spend eternity. (TV: The Timeless Children)

Behind the scenes

 * Despite TARDISes having a different style Classic interior in past stories, this TARDIS' interior, along with another one, used the same style of interior as the TARDIS used by Jo Martin's Ruth Doctor.
 * Although it is never explicitly stated that these were the original interiors, just that they were different TARDISes from the Doctor's own version.