There's no difference whatsoever.
And it's not surprising because on my iOS device I've been using similarly architected content blockers since 2015. There's no issue with declarative ad blocking.
Of course this differs with the kind of sites you visit. So you need to try it on your own. I can believe that perhaps for some people this is a downgrade, but don't automatically assume uBlock Origin Lite won't work well for you.
iOS I'll give you, but macOS can in fact run ex. Firefox.
> finally matching the security and the privacy in that regard.
"Matching" inferior security+privacy is not a good thing. The only way this is an improvement if you think the blockers are malicious; otherwise a useful tool in the users interest has been made less powerful.
https://helpcenter.getadblock.com/hc/en-us/articles/97384768...
https://www.wired.com/story/fake-chrome-extensions-malware/
This has been never ending.
The Firefox version of uBlock Origin Lite was pulled due to unsatisfactory audit process: https://news.ycombinator.com/item?id=41707418
So make one that isn't incompetent? That's not really a counterargument to the general idea.