Please find whoever Danny Jansen's optometrist is and ask him to increase the strength of your eye glass prescription because Steamer is only projecting a 12 point increase on his 2022 wRC+, not 20.
Next, please read a Bill James book, or maybe even a Fangraphs article (anything other than a Sheryl Ring article would probably teach you a thing or two) because it's not "extremely bullish" to expect a 23 year old player to get better.