The footer changes depending on what page you are on. On Search and Translate, the footer is nearly identical, but the translate page also includes language selection, which is missing from the search page. Even though the translate page has an extra button, the width seems to be fixed, causing the footer on the translate page to be slightly less readable. There may also be a slight colour change, but I'm not sure if that's just because the scaling is different.
Other pages like Summarizer and FastGPT seems to be using an older footer with less buttons.
Search

Translate

Summarizer

I think the footer should stay more consistent across different pages.
If a page does not support multiple languages, the footer should not change more than just removing the language selection button. Text font, size, colour, and margin should stay the same.