The new RideNow TPU tubes seems to be significantly better than previous generation. I've installed a set for a four days, 250 km into them and I didn't need to add air to proper pressure yet.
Another aspect I'm quite unhappy with about TPU tubes is that they don't react very well to total deflate and re-inflate. When I change tires (switching from road to CX tires and back) after two or three such switches they start to develop pores or something, and over the night they loose 2/3 of the pressure. And obviously, they don't resist to a single session of riding. I'm not pinching them at the installation, they just seem not to like this scenario.
Let's see how the newer ones fare with this scenario.