My father has a Lexus and the interior design and dash system are the worst I've ever seen, full stop. The weird touchpad that barely works. The sheer amount of buttons and options that 99% of people don't use 99% of the time. The way it handles maps while listening to music. The impossibility of going back and forth between sections while driving. I'm sure they're fine cars, but my god what an atrocity of user experience on the inside.
Lexus and Toyota don't update their interiors often enough because they don't have to and there are people willing to pay a premium Toyota tax for whatever they have.
At the same time, the recent and latest Toyotas and Lexus' look sharp. Usually they are pretty conservative.