You are sadly right about the bait and switch Lexus tactic ( was told August/September when ordered, then the order form suggested end of November which realistically means sometime next year), but I guess Yaris doesn't have the same number of CPU's , so is not affected as much by the global computer chip shortage.
The good think though is that Lexus gives price guarantee. So - and considering inflation and price increases - by the time the car arrives, you will probably be able to sell it to we buy any car and make a profit - if so you wish that is .