A 9 once told me, "9 is the angriest type". They hide their wants/needs/judgements for others to see, to not inadvertently cut people. When they do that, they feel unseen, which builds up anger, but then that anger feels unacceptable to express. So they push it down and builds on the repressed rage, also creates anxiety and hurt.
Sp 9s feel like they have to suck it up, but still they definitely have FEELINGS.

sx 9:


9s do not escape everything. 9s feel as strongly as any other type, on the inside. 9s get depressed. 9s get anxious. But most of all 9s get ANGRY. Their anger does slip out, my dad is a 9w1 and he has hit me and pulled my hair and yelled at me and my sister. I was way more scared of him than my mom who doesn't even have 9 in her tritype.