ASIC Design Engineer applicants have rated the interview process at ByteDance with 4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 48.9% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Behavioral questions (about experiences, also asked for review of code that I made), random digital logic questions (half adder, full adder, etc.), then variety of system verilog coding questions. Also asked a couple of C questions.