Extended Edition technical state for campaign&skirmish?

Hi, I've been eyeing the Extended Edition on Steam for a while since I wanted to buy it to replay the original campaign, as the OG Age of Mythology was a pretty important childhood videogame for me. I think I'll buy it come the next sale (I need to do so before and if they decide to make and release a Definitive Edition as that most likely won't work on my ancient laptop and they seem to stop putting the previous edition on sale given how it went for AoE2HD and AoE3CC), but I wanted to know a little better how the game's current state tech-wise is beforehand. I already know that it's basically a downright disaster as far as online is concerned - I'll take that for what it is (I don't plan to play online at all with this game), and I wanted to ask how the campaigns (original and Titans) and the skirmish mode against/with AI are in the Steam edition. Bugs? Technical issues? Playable or still downright broken?

I tried looking through the sub for info on this, but all technical issues raised here that I managed to find concern the multiplayer, which is understandable. Still, any piece of info on single player modes would be appreciated!