https://forum.xda-developers.com/t/root-for-sm-t290-tab-a-8-0-2019.3965624/page-29#post-86140697
Tablet = Samsung Galaxy Tab A 8.0 (2019)
Model # = SM-T290
OS = Android 11
Build # = RP1A.200720.012.T290XXU3CUK4
https://forum.xda-developers.com/attachments/aboot_vk_t290xxs3atf1-tar-zip.5489911/
choco install adb
Get the samsung adb device drivers.
Download Odin.
The XDA people generally figure out the older versions first.
T290XXU3BUC1 has some info on it from Talich52, but not the latest.
https://forum.xda-developers.com/t/root-for-sm-t290-tab-a-8-0-2019.3965624/page-27#post-85417423