The short answer: No, this doesn't directly affect his fantasy value — because he's an offensive lineman, not a skill-position player. Offensive tackles aren't drafted in fantasy leagues. But here's the context since you're curious about the situation:
What happened: On Oct 25, per ESPN, Simmons — who had just been placed on IR — was told to leave a team meeting by Andy Reid and Patrick Mahomes. The incident started when Simmons put his feet up citing his back injury, Reid asked him to sit properly, Simmons pushed back, Mahomes told him he should leave to avoid disrupting the meeting. Simmons later apologized.
The bigger picture matters for the Chiefs' offense though: This is just the latest chapter in a messy situation. Simmons, a 2025 first-round pick, has barely played in two seasons due to a bulging herniated disc that has "plateaued" in rehab. Meanwhile, undrafted rookie Kahlil Benson has been a revelation — NFL Offensive Rookie of the Month for September, allowing just 3 pressures through five starts (from the Kahlil Benson page). Simmons' future with the team looks uncertain, but Benson has already locked down the left tackle spot, so Patrick Mahomes' blindside protection is in good hands regardless.