Previously, users who visited the site without logging in could also search. However, with this new update, users browsing without a login will only be able to access a curated list of tweets in the Explore tab.
Since the search field has been completely removed, unregistered users will now have to create an account to find things on Twitter. However, after clicking on a tweet, the search field is visible again. However, when you try to search, you will be prompted to sign in.
This change could be a tactic by the likes of Elon Musk, who is making a strategic move to increase Twitter's user base.
But don't worry, you can still use Twitter searches. You can search for Twitter using Google with a query like “site: twitter.com”. After entering this query in Google Search, you can access the information you want.
With this update, the Twitter experience is focused on registered users and aims to drive more interaction and engagement.