You asked
Is the canon eos r8 mark ii good for video?
The site doesn't have video specs for the Canon EOS R8 Mark II, so I can't tell you how it handles video. Its catalogue page lists a 24.2-megapixel full frame sensor and in-body stabilisation, which helps handheld shots, but nothing on frame rates, flip-out screen or microphone input. Check those on Canon's own spec sheet before you buy.
For a vlogging setup, the Video guide suggests a wide lens, so these from the R8 Mark II's list are worth a look:
Don't skimp on sound either. The audio section is worth reading before you choose.
Written by Claude from this site's pages.