With what leverage? If you have no-strings-attached income, you are not facing destitution at the loss of your job, and it becomes a lot less risky to walk away from a job and move somewhere else. If all the landlords in one area do that, employers in that area will probably have to pay more.
But imo, some type ubi system should be paid for with a vat tax that just pulls it's income directly out of economic activity, which would make it harder to avoid paying for. The result would be higher prices anyway which would probably offset the income, but new situation would be that workers have a lot more leverage in their employment and living situation.
My other hot take is that with a ubi, minimum wage should be abolished. Basically, with ubi the need for it would be lessened and more people might be willing to work jobs that they might not have been able to live off of without a ubi. But again, these are basically my hot takes
If A, then B
If Not B, then Not A
If it's raining then the grass is wet, but you can't tell if it's raining if the grass is wet, because of say, a hose or sprinkler.
All that you can tell is that if the grass is dry, then it is not raining, and I that's called a contrapositive.