WAVLINK USB 3.0 & USB C to Dual HDMI Adapter 4K@60Hz for 2 Monitors, DisplayLink USB C HDMI Adapter for Dual Monitor, for Mac M1-M5/Neo, Windows, ChromeOS, Ubuntu

I suppose affordability differs from person to person, while they aren't cheap, they aren't super expensive. Could be limited selection in the EU too? My wife uses this one with her MacBook Air M4https://www.amazon.com/dp/B0D7YQ353F?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_16 I use this one with my MacBook Pro M4 (I just tested and it worked fine on my wife's MacBook Air) - I only use the DisplayPort ports, but HDMI should work fine too. Two inputs via thunderbolt to DisplayPort to my Dell monitor and one DisplayPort connection to this DisplayLink adapter; I did also have an 4th portable monitor connected to port 2 via HDMI but decided I didn't like it.https://www.amazon.com/dp/B0CTSH7S1M?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1