Why is Mass Effect Legendary Edition full of bugs?

I thought to revisit my old love, the Mass Effect trilogy, in the form of the remaster, but when playing, I only run into disappointments.

Starting from the second game, audio kept bugging - animation would start and the audio would be dragged along second or two late (or even more, worst cases) and would be cut off at the middle of the sentence at the end when the animation stops.

Still, for the love of the game, I kept on going, hoping third game would be free of bugs.

Nay.

Audio issues still continue, and when I first got to the Normandy for the cutscene before heading off to Mars, background textures were bugged - they were either green or multicolored, indicating that textures had failed.

I cannot find joy playing this game anymore. Unless there is a fix happening, I cannot play it and actually feel good for playing it. Audio and the looks were a big part of immersing myself in the game, and if they are to be disturbed, there is no good game anymore.