User research without interviews
https://birdeatsbug.com/blog/user-research-without-interviews
A guide on non-traditional approaches to user research to complement your regular customer development interviews. Includes examples from personal experience.
Guru99 has content that is very old school and often outdated kind of thinking, be weary of that. They rank well for SEO, but it's not really how testing is done these days.
I'm bias towards (my) Ministry of Testing, but I've also spent many years in the testing world.
Yes, we've actually also noticed that, but it was OK since we were starting with 0 essentially and the course helped in that respect.
Great to know that you are from Ministry of Testing. We are already following you guys on Twitter :)