Why Does Bethesda have so many bugs?

The more complicated the software is, the more bugs you can expect. Bethesda games tend to be huge, with massive worlds, tons of detail, and loads of content. You can only test and fix so much, some things will always not be noticed, or be noticed by be determined to be too much work to fix. Because they’re HUGE!

Why do Bethesda games freeze?

Most crashing issues are related to a corrupted save and/or a bad mod being added to your game. Disable any mods added and start a “new” save to see if the issue occurs on a brand new game. If it does not crash on a new game, the issue most likely is related to a bad save and/or mod.