It works!

crates/biome_cli/src/execute/process_file.rs

@@ -211,10 +211,11 @@ pub(crate) fn process_file(ctx: &TraversalOptions, biome_path: &BiomePath) -> Fi
         match ctx.execution.traversal_mode {
             TraversalMode::Lint {
                 ref suppression_reason,
+                suppress,
                 ..
             } => {
                 // the unsupported case should be handled already at this point
-                lint(shared_context, biome_path, suppression_reason)
+                lint(shared_context, biome_path, suppress, suppression_reason)
             }
             TraversalMode::Format { .. } => {
                 // the unsupported case should be handled already at this point

crates/biome_cli/src/execute/process_file/check.rs

@@ -18,7 +18,7 @@ pub(crate) fn check_file<'ctx>(
     tracing::info_span!("Process check", path =? workspace_file.path.display()).in_scope(
         move || {
             if file_features.supports_lint() {
-                let lint_result = lint_with_guard(ctx, &mut workspace_file, None);
+                let lint_result = lint_with_guard(ctx, &mut workspace_file, false, None);
                 match lint_result {
                     Ok(status) => {
                         if status.is_changed() {

crates/biome_cli/src/execute/process_file/lint.rs

@@ -14,15 +14,22 @@ use std::sync::atomic::Ordering;
 pub(crate) fn lint<'ctx>(
     ctx: &'ctx SharedTraversalOptions<'ctx, '_>,
     path: &Path,
+    suppress: bool,
     suppression_reason: &Option<String>,
 ) -> FileResult {
     let mut workspace_file = WorkspaceFile::new(ctx, path)?;
-    lint_with_guard(ctx, &mut workspace_file, suppression_reason.clone())
+    lint_with_guard(
+        ctx,
+        &mut workspace_file,
+        suppress,
+        suppression_reason.clone(),
+    )
 }
 
 pub(crate) fn lint_with_guard<'ctx>(
     ctx: &'ctx SharedTraversalOptions<'ctx, '_>,
     workspace_file: &mut WorkspaceFile,
+    suppress: bool,
     suppression_reason: Option<String>,
 ) -> FileResult {
     tracing::info_span!("Processes linting", path =? workspace_file.path.display()).in_scope(
@@ -36,6 +43,12 @@ pub(crate) fn lint_with_guard<'ctx>(
                     (Vec::new(), Vec::new())
                 };
             if let Some(fix_mode) = ctx.execution.as_fix_file_mode() {
+                let suppression_explanation = if suppress && suppression_reason.is_none() {
+                    "Ignored using `--suppress`".to_string()
+                } else {
+                    suppression_reason.unwrap_or("<explanation>".to_string())
+                };
+
                 let fix_result = workspace_file
                     .guard()
                     .fix_file(
@@ -47,7 +60,7 @@ pub(crate) fn lint_with_guard<'ctx>(
                             .build(),
                         only.clone(),
                         skip.clone(),
-                        Some(suppression_reason.unwrap_or("<explanation>".to_string())),
+                        Some(suppression_explanation),
                     )
                     .with_file_path_and_code(
                         workspace_file.path.display().to_string(),

crates/biome_graphql_analyze/src/suppression_action.rs

@@ -39,7 +39,7 @@ impl SuppressionAction for GraphqlSuppressionAction {
         mutation: &mut BatchMutation<Self::Language>,
         apply_suppression: ApplySuppression<Self::Language>,
         suppression_text: &str,
-        _suppression_reason: String,
+        suppression_reason: String,
     ) {
         let ApplySuppression {
             token_to_apply_suppression,
@@ -53,7 +53,7 @@ impl SuppressionAction for GraphqlSuppressionAction {
             .filter(|trivia| trivia.is_whitespace())
             .collect();
 
-        let suppression_comment = format!("# {}: <explanation>", suppression_text);
+        let suppression_comment = format!("# {}: {}", suppression_text, suppression_reason);
         let suppression_comment = suppression_comment.as_str();
         let trivia = [
             (TriviaPieceKind::SingleLineComment, suppression_comment),