The first gen CHAdeMO fast charging DC adapter has a maximum charging speed of 50 kW per hour. However according to Pod point https://pod-point.com/guides/vehicles/lexus/2021/ux-300e The DC charging on the UX is limited to 35 kWs, and depending on the current charge level & battery temperature the charging may be lower than that still.
Sadly the UX300e isn't really designed for long trips, it will of course do them, but given the charging times it's best if they aren't very frequent.