I saw significant difference using the Lite version, enough that I switched to Firefox with Origin instead. I expected it to be good enough and was surprised to see the difference.
Same. I use the element picker tool all the time to rid the web of crap I don't care about. Example:
whatever_class:has-text(/YouTube Shorts/)
On Android you can even do this on your phone in Firefox. The UI is a bit tricky on such a small device, but it's so worth it. I went so far as to uninstall Chrome (well, disable it) on my Android.
For whatever reason, the UBOL creator chose not to include zapper/picker in order to make it as "lite" as possible. It wasn't a Manifest v3 thing, as they've explained.
I have no problem with using a separate extension for zapping.