Got an Allintech 8-in-1 hub from Amazon; unknown HDMI cable; that got me up to UWQHD resolution on my Note 10+ and my S20 Ultra on the Alienware AW3418 monitor.

Here's the hub: https://www.amazon.com/gp/product/B07XVM59FQ/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1