I would say, if anything, the fear is likely under-blown.
Sure, you’ll find many users here on Lemmy who hate what Google are doing… but we’re not the typical internet user. I mean, we specifically found this niche platform called Lemmy rather than use one of the mainstream social media platforms. The typical “normie” who uses Chrome probably has no idea about the privacy risks of using it (either in its current form or when the Topics API is being used). We need to help others understand, and hopefully convince these people to move over to Firefox.