According to the video, the creator,をしている人 (をしているひと - hito oshiteiru hito, a person who does [something]), The Linux Experiment, conducted a survey to identify the problems people are facing on Linux. Most of the respondents (39%) consider themselves knowledgeable about Linux (39% said they knew their way around Linux and 10% said that Linux had no secrets for them), while only 10% described themselves as beginners.
Here are the top 3 problems people face on Linux according to the survey:
Integrating Linux systems with other devices (36% of people picked this as a paino)
Using existing Hardware (28% of people picked this as a problem)
Installing software and apps (20% of beginners said it was a problem when the average for the survey is 10%)
The creator expressed surprise about some of the findings, including:
People having trouble with GPUs (34% of people said they had trouble with their GPU)
People having trouble with Wi-Fi and Bluetooth (17% each)
People having trouble with application crashes (25% picked application crashes as a big enough issue that they had to select it)
The creator also mentioned that people seem to have a positive experience using Linux overall. 56% said they have a few issues but that they don't impact their trust in their OS and 71% of people who answered also said their experience with Linux was very good better than other operating systems.