This may change in the future Google Messages update. According to 9to5Google, Google has changed emojis such as "like," "emphasize," and "laugh" to "iOS_React Classification," "Show iPhone reactions with emojis," and "iOS_React Mapping."
Of course, there are many unknowns. First, the feature may never be released. On the other hand, we don't know what Google is doing here, so we need to see it in action. Strictly speaking, it could be a Google Messaging feature on one device that doesn't change what iPhone users see on the other side.
But for the first time in years, Google has realized that Android users don't text with iPhone users much. Since Apple isn't going to change the way iMessage works to accommodate Android users, Google may end up doing it.