The evidence leans toward your post experiencing algorithmic suppression due to its sensitive topic (Gaza casualties and Israel-Palestine conflict). This is consistent with broader trends of X limiting pro-Palestinian content, as documented in various reports. The pattern of low impressions across your recent posts further suggests account-level suppression, likely triggered by your frequent posting on controversial topics. While it's challenging to quantify the exact impact, the combination of low reach, reported platform biases, and your content's nature strongly hints at algorithmic deboosting.