Code yes, but the information, lists, and capabilities beyond that no.
I do think it’s a low risk, but it is not zero.
They could also do some nefarious stuff if they get bought out.
Don’t get me wrong I hope they last and I’m just plain wrong, but pihole works great and is a bit more pure.
About ui/ux, you are one hundred percent right. People want and demand simple. Single click install and setup is what is really needed and pihole loses resoundingly in that, especially if combined with encrypted dns request forwarding.
You will never get that battery if it makes the device thicker. I was in the industry, we made smartphones with a two day battery. Full on thick, in direct response to customers asking.
None sold. Period. It was something like 8-10mm thicker.
Everyone looked at the one with the thick battery then the thin and bought that.