Yes I have used similar methods. In addition to using generic, relevant searches on Google, Reddit, etc., I did competitor searches looking for discussions abou

Yes I have used similar methods. In addition to using generic, relevant searches on Google, Reddit, etc., I did competitor searches looking for discussions about them. That helped me figure out which competitors were most popular. Typically people would discuss what they like or dislike about them which helped inform some product decisions. In my case there seemed to be some dissatisfaction with existing solutions and willingness to try new products which suggested there is demand.