Phone call with hr Technical wihh mobile engineer to build a game There are 4 more back to back interview afterwards includes behavioral and system design I didn’t make it to final round

Did their phone interview and onsite. The phone interview was a series of tasks within an Android app, implementing incremental features. The virtual onsite (for covid-19 times) involved a couple of non-technical interviews, plus a 2.5h session where you implement an app, with minimal oversight from the interviewer. The interviewer actually leaves the chat and lets you work alone. I assume that I failed the technical aspect of the onsite because they never contacted me again after the interviews ended. It's been a month and I've since accepted an offer from a different company.