Yes, it is suitable.
Yes, it is suitable.
Yes, the I3 6100 with a 1060x6G resolution can handle most games at 1080p.
The i5 seems worthwhile from my perspective, though the i3 offers superior performance compared to Pentium or older AMD models before Zen.
Zen focuses on simplicity and mindfulness. You mentioned needing something quick, so look for options with powerful processors.