FUK THAT I WANNA SAY SOMETHING
In my experience, most people sweep difficult emotions under the rug. I haven't known enough INFJs well enough and for long enough to comment if it's significantly different for this type, though.
Many of the xxTxs in my life have pretended or claimed not to have emotional responses to occurrences that have affected them personally, but often I have witnessed them blow up as a result of repressing these emotions. In their case, I believe it's because they don't view emotions as constructive. I still struggle to understand why certain emotions are valuable, and it wasn't too long ago that I generally regarded shows of emotion as a sign of weakness.
I haven't had a lot of close relationships with Feelers, other than a few with INFPs. They generally are more accepting of emotional expression, though I wouldn't say the ones I know necessarily face them head on as much as drown themselves in them. It seems less of an impartial approach as INFJs seem to take.
These are just my personal experiences... Emotions are complex and I suck at them mmk