Oh, I see. Thank you for an answer.
I've already installed tlp from Arch, after I wrote this post, and I can say it is working fine. By the way, I had to build tlpui from AUR, because original refused to work with new tlp. I don't know what about default settings, I never used them (I have to disable turbo and limit CPU and GPU frequencies a bit on my old laptop), so I can't compare them.
And one more question - I don't see thermald in Manjaro's repo. Is there something wrong with it? I rebuilt one from AUR and had to add config by the hand. Or maybe I should create another topic about it and CPU thermal situation. (in which forum section it would be better?)