The packages are fine, they do what they are meant to do and they work well enough. That is why they were included in the Powersave Tweaks bundle in the first place.
I would suggest placing less value on the opinions of others, and focus more on testing the tools for yourself to come up with your own conclusions. Everyone here is using different hardware, so the same tool can work really well for one person and be less effective for another.
Since you are using AMD, I would also investigate using the P-state driver, which can enable very significant power savings. It has been discussed here in this forum, for example here: Discussing Linux kernels for Garuda Linux - #6 by Austin
See also this lengthy discussion from another forum: How to use AMD P-State in Linux - Kernel, boot, graphics & hardware - EndeavourOS
The ArchWiki is arguably the best source for Linux documentation of all time. Typically when someone links to an article, it is because it contains useful information relevant to whatever you are trying to learn about.
If you are interpreting linking to the wiki as dismissive or condescending, I will suggest you are misreading the practice. It is usually meant to be helpful.