I'd go with one of these, been using Anker products for years. I'm sure they are available on sites other than Amazon.
https://www.amazon.com/Anker-Charger-PowerPort-Adapter-Foldable/dp/B095TRV24B
Or
https://www.amazon.com/Charger-Anker-Adapter-Foldable-Compact/dp/B08T5QN2TR?ref_=ast_sto_dp
This Anker charger works for my 2020 x360 at full speed, it's the only one I've found. https://smile.amazon.com/gp/aw/d/B095TRV24B