Should i make my video longer?

[Meeting The Community]

Hello, I made this new Youtube channel where I meet twitch streamers and youtubers and interview them a bit in order to know something about them and to know what content they stream or make online. This is my first video and I was wondering if the length of each video being more or less the same is good or I should make my videos longer? Please also feel free to criticize anything that you don't find fitting as it will help me to improve a lot

Thanks!