On the arch wiki is information that mate-gtk3 is some kind unstable. There are problems with caja, mate-panel, pluma, marco and others.
And so if I need gnome+mate to use only mate, I will change desktop environment to xfce. IMHO xfce is closest to original gnome 2. i thing it is little bit silly to have 2 DE because I want use only one of them.
I used to use gnome2 since 2006. When they stopped support gnome 2 i have had to change to something else. I tried many different DEs. I tried Enlightenment: interesting but unstable, deepin: very heavy and slow, cinnamon: sometimes crashes without reason. i used to use kde 4 and kde5 for longer time. But KDE is heavy too so i need something more friendly to resources. I thought that because MATE is fork of gnome 2 ,so it will be working exactly as its predecessor. Since gnome its not the same I try XFCE. I like Antegros because it is preconfigured arch and I don’t have to waste time to install everything from scratch.
Thank you all for helping me.