Last I read, it was still available on Edge if you must use a Chromium browser. I'm using Firefox, so I can't/won't bother confirming that is still the case.
Is regular uBlock made by the same guy? I think there was a situation with ublock or something that resulted in origin being made or something like that. I'm not sure if the regular ublock is a good project
basically gorhill forked his own project into 'ublock origin' and gave the original 'ublock' to someone else.
the original kinda fizzled out after that person tried to solicit donations. 'ublock' was then sold to 'adblock' and restarted-sorta.
a few years later, eyeo (known for 'adblockplus') bought 'adblock' (and with it, what became of the original 'ublock').
ublock origin lite is gorhill's mv3 version of ubo with some reduced functionality to operate within the new restrictions placed on addons by google--just one step in the process to eventually kill off adblockers completely for chrome and chromium-based browsers.