Stickers were that novelty (already known in Telegram) that helped WhatsApp to offer users a variety in their communication mechanisms.
That is why WhatsApp has been constantly transforming this mechanism to optimize processes.
That is, from the standard stickers, it went to the possibility of customization, then to the stickers in movements and now the latest update seeks to improve the process of searching for them.
The new WhatsApp feature that is being implemented for stickers in the iOS beta application is to search for them based on the word.
Details of the Stickers search engine in the WhatsApp application
Now the user while searching for WhatsApp stickers, can type ‘love’ in a new bar, and on tapping the sticker icon, he will see in the results below the stickers that are related to love.
The feature will scan the first word typed in the chat bar and if it matches any stickers saved in your sticker library, a suggestion will be displayed.
This would be a search function for your sticker library and not necessarily a universal search for this graphical element of communication.
You should note that the stickers created in third-party applications such as Sticker Maker are not compatible with this feature, but everything seems to indicate that they are working on a new update that will support this new feature, associating emojis and stickers.
According to the specialized media WABetaInfo, WhatsApp Messenger beta for iOS 220.127.116.11 that comes with the ability to search for stickers, could also be available with previous beta versions of the app.
However, the feature is being rolled out only to specific users, so you may not receive it.
For Android devices, you will have to wait a few more weeks.