For the internship, Google generally does two interviews over the phone but does in-person interviews at select schools. Both are basic white board interviews. For the freshman/first year interviews, the questions are a lot easier as they are catered to the freshman programming level.
I applied online. The process took 2 weeks. I interviewed at Google in Jun 2019
Interview
Coding Sample -> 3 phone screens, everyone was really good at communicating. Had to solve some questions on an online coding sample link, and after that I had two phone interviews. After that they needed a tiebreaker so there was another schedules.
I applied online. The process took 6 months. I interviewed at Google in Jan 2020
Interview
I applied online and the recruiter got back to me three month later to check my graduation date and visa status. After Screening, I got an email with two Coding Challenges and a snapshot survey. After two weeks, I got an email stating their willingness to move forward with my application and schedules two back to back 45-minute technical Interviews. In my first interview, the recruiter explained a game and asked me to code for Users Interface and I did well. My second Interview is on Array Concepts and easier than the first one but didn't get good feedback from the recruiter. Because he is expecting me to code the same method he has in mind though I ended up with the correct solution. Exactly after a week, I got a rejection email.