Safari translation on Sequoia 15.6.1

Since I updated my MacBook to Sequoia 15.6.1 the translation button to translate webpages on safari doesn't appear anymore, at least not every time. its appearance is very inconsistent and that's quite frustrating, sometime it appears after a couple of seconds on a webpage, sometimes it never appears.

It was very useful to me since I live in Germany without speaking fluently Deutsch.

Someone has a solution to either add an extension to do the translation when needed or simply fix the absence of translation button.