Questions: Stash & Season Journey 19

Question 1 - Is the Max Stash for Console players 350?
Question 2 - I’ve read that you can get a stash upgrade if you complete the Conqueror Tier. Is this for console players too or is it PC only?
Question 3 - If you do successfully clear the Conqueror Tier then how do you get your stash upgrade?

I’m asking all this because I already fully cleared the season journey rank 1-8 including Conqueror and Guardian tiers and I only have 350 stash still. I’ve tried to restart the game and check my inventory and try my other characters but they all have the same amount. This is my first time playing the season and I struggled quite a bit, I put in alot of work and now it feels like its just been a waste of time.

The max stash size on consoles is 350. Unlike on PC, console players start with maxed out stash and already have more space than PC players.