I think the main difference with UBI is that in order to receive unemployment welfare you have to not work, they are de-incentivizing working essentially. In the UBI system everyone gets a minimum paycheck and that would basically be like living on welfare however if you want you can go work somewhere else in addition to earn more money and improve your living standards if you want to. Probably minimum wage would have to be raised so that people would want to work as a maid or McDonald's but the economy would adjust to the supply of workers I assume.

> Probably minimum wage would have to be raised so that people would want to work as a maid or McDonald

The beauty of UBI is that government mandated minimum wage, with all its drawbacks, wouldn't be needed anymore. People would be able to refuse shitty job offers and not starve. Ultimately, employers would have to raise wages but not because of the law but because of workers' better negotiation position.

I consider the things you mentioned basics, but YMMV. I reckon that the majority of people would like to have more in their life than that, and would be willing to work to that effect, at least I would be.