Not only search: titles and description of Youtube videos are being translated. Colab UI is now in Spanish (using technical terms that make no sense).
Some people may want translation, mostly people that only speak a single language. But for most bilingual people, being forced a translation (a lower quality one), is a worse experience. I'm surprised that no one at Google has pushed back this anti-user behavior. It is like no one at Google knows more than one language.
The worst part is when traveling. Google ignores the browser settings, so it throws me Japanese or German website, even if my browser settings clearly says English then Spanish.