This is the most annoying thing, and it's even happened to Jetbrains' rider too.
Some stuff that used to work well with smart autocomplete / intellisense got worse with AI based autocomplete instead, and there isn't always an easy way to switch back to the old heuristic based stuff.
You can disable it entirely and get dumb autocomplete, or get the "AI powered" rubbish, but they had a very successful heuristic / statistics based approach that worked well without suggesting outright rubbish.
In .NET we've had intellisense for 25 years that would only suggest properties that could exist, and then suddenly I found a while ago that vscode auto-completed properties that don't exist.
It's maddening! The least they could have done is put in a roslyn pass to filter out the impossible.
This is my biggest frustration. Why not check with the compiler to generate code that would actually compile? I've had this with Go and .Net in the Jetbrains IDE. Had to turn ML auto-completion off. It was getting in the way.
The most WTF moment for me was that recent Visual Studio versions hooked up the “add missing import” quick fix suggestion to AI. The AI would spin for 5s, then delete the entire file and only leave the new import statement.
I’m sure someone on the VS team got a pat on the back for increasing AI usage but it’s infuriating that they broke a feature that worked perfectly for a decade+ without AI. Luckily there was a switch buried in settings to disable the AI integration.
The regular JetBrains IDEs have a setting to disable the AI-based inline completion, you can then just assign it to a hotkey and call it when needed.
I found that it makes the AI experience so much better.
Loosely related: voice control on Android with Gemini is complete rubbish compared to the old assistant. I used to be able to have texts read out and dictate replies whilst driving. Now it's all nondeterministic which adds cognitive load on me and is unsafe in the same way touch screens in cars are worse than tactile controls.