Yeah, it takes some mental effort to change your habits, people are more likely to just install a new extension.
BUT, those extensions are probably next, dropping uBlock is part of a long-standing war by Google against ad blocking of all kinds. So at some point Chrome users won’t be able to escape ads, and then i do wonder if they’ll switch.
I feel like normal people who are too lazy to care would probably just use the default browser that came with their device. It will be Chrome if it’s an Android, but it will be everything but Chrome if it’s any other OS, it will be Edge or Safari.
Now i haven’t installed Chrome in a minute, but how many devices is it the default for? My understanding is that a lot of Chrome users specifically looked for it and installed it to use instead of the default, especially Windows users. And for that public, i do think it matters, i do think they would consider switching.