I confirm what was written by WIndolin. On my 8Gb Mac Mini M1 with macOS Monterey 12.6, LOTRO runs surprisingly well (I'm using the Crossover 22 trial).

I must point out that I am not really "playing" the game .... I just wanted to give Crossover Mac 22 a try and I thought of using LOTRO as a test (I participated in the beta eons ago). So, to be honest, I just walked around Thorin's Gate with a dwarf Liv. 1 and Refuge of Edhelion with a high elf Lv. 1.

Curiously, when set to ULTRA the framerate was more stable than on HIGH and VERY HIGH (for now I have limited myself to setting the maximum framerate of the game to 60 fps).

I guess that by continuing in the game it will inevitably be mandatory to further customize the graphic settings to maintain a stable framerate ... but I find it surprising that it works so well on an entry-level M1 (evidently, in this case at least, the DirectX 11> Vulkan> Metal translation in WINE is working great).