“There’s also the 2k22 Tunguskas, which currently can fire its missiles and hit up to 20,000 and the current upgrade under development will hit to 25k or 30k.”
Do you have a source? Documentation I see shows 3.5 km (11,482 ft).
The current 2K22M1 carries the 9M311-M1, which tops out at an advertised 6km ceiling, which is roughly 20k feet. The previous 9M311-no-suffix has the 3.5km ceiling.
https://www.deagel.com/Defensive%20Weapons/9M311/a000996