As a purely anecdotal datapoint, Perplexity was my first stop search engine for a while. It stopped being my first stop when they starting prompting me constantly to try their browser. Getting in the way of me being able to immediately ask my question drove over to gemini instead. It turned out that Gemini was good enough now so I didn't go back.

Their mobile app still seems to be usable so far.

Stopped being my preferred search engine when my company, a big global agency, decided to block all traffic to perplexityity on the company device because they don't allow it's browser to be used. Hilarious.