My Note 20 Ultra said $500 trade in for the ultra, including the upgrade in memory. 24 month plan.
From what I remember in the past few years, the trade-in value depends on what plan you're on. One year, they wanted me to go to a new plan to get the good trade in value, but with the added cost each month, it was a wash out. The extras they gave with the plan (Magnenta, I think) may have made it worth it, but I didn't do that.
I don't think my trade-in went through as I have no notification from tmobile. I think I'll just wait and see if it's available in person. Last year they extended it after, when they had them in store.