diff --git a/lld/MachO/Driver.cpp b/lld/MachO/Driver.cpp
--- a/lld/MachO/Driver.cpp
+++ b/lld/MachO/Driver.cpp
@@ -469,7 +469,7 @@
 }
 
 static void warnIfUnimplementedOption(const opt::Option &opt) {
-  if (!opt.getGroup().isValid())
+  if (!opt.getGroup().isValid() || !opt.hasFlag(DriverFlag::HelpHidden))
     return;
   switch (opt.getGroup().getID()) {
   case OPT_grp_deprecated:
@@ -562,6 +562,8 @@
   for (const auto &arg : args) {
     const auto &opt = arg->getOption();
     warnIfDeprecatedOption(opt);
+    warnIfUnimplementedOption(opt);
+    // TODO: are any of these better handled via filtered() or getLastArg()?
     switch (arg->getOption().getID()) {
     case OPT_INPUT:
       addFile(arg->getValue());
@@ -593,27 +595,7 @@
     case OPT_platform_version:
       handlePlatformVersion(arg);
       break;
-    case OPT_all_load:
-    case OPT_o:
-    case OPT_dylib:
-    case OPT_e:
-    case OPT_F:
-    case OPT_L:
-    case OPT_ObjC:
-    case OPT_headerpad:
-    case OPT_headerpad_max_install_names:
-    case OPT_install_name:
-    case OPT_rpath:
-    case OPT_sub_library:
-    case OPT_Z:
-    case OPT_arch:
-    case OPT_syslibroot:
-    case OPT_sectcreate:
-    case OPT_dynamic:
-      // handled elsewhere
-      break;
     default:
-      warnIfUnimplementedOption(opt);
       break;
     }
   }
diff --git a/lld/MachO/Options.td b/lld/MachO/Options.td
--- a/lld/MachO/Options.td
+++ b/lld/MachO/Options.td
@@ -101,7 +101,6 @@
 def syslibroot : Separate<["-"], "syslibroot">,
      MetaVarName<"<rootdir>">,
      HelpText<"Prepend <rootdir> to all library and framework search paths">,
-     Flags<[HelpHidden]>,
      Group<grp_libs>;
 def search_paths_first : Flag<["-"], "search_paths_first">,
      HelpText<"Search for lib<name>.dylib and lib<name>.a at each step in traversing search path (default for Xcode 4 and later)">,
@@ -114,7 +113,6 @@
 def framework : Separate<["-"], "framework">,
      MetaVarName<"<name>">,
      HelpText<"Search for <name>.framework/<name> on the framework search path">,
-     Flags<[HelpHidden]>,
      Group<grp_libs>;
 def weak_framework : Separate<["-"], "weak_framework">,
      MetaVarName<"<name>">,
@@ -134,20 +132,16 @@
 def F : JoinedOrSeparate<["-"], "F">,
      MetaVarName<"<dir>">,
      HelpText<"Add dir to the framework search path">,
-     Flags<[HelpHidden]>,
      Group<grp_libs>;
 def all_load : Flag<["-"], "all_load">,
      HelpText<"Load all members of all static archive libraries">,
-     Flags<[HelpHidden]>,
      Group<grp_libs>;
 def ObjC : Flag<["-"], "ObjC">,
      HelpText<"Load all members of static archives that are an Objective-C class or category.">,
-     Flags<[HelpHidden]>,
      Group<grp_libs>;
 def force_load : Separate<["-"], "force_load">,
      MetaVarName<"<path>">,
      HelpText<"Load all members static archive library at <path>">,
-     Flags<[HelpHidden]>,
      Group<grp_libs>;
 
 def grp_content : OptionGroup<"content">, HelpText<"ADDITIONAL CONTENT">;
@@ -165,7 +159,6 @@
 def filelist : Separate<["-"], "filelist">,
      MetaVarName<"<file>">,
      HelpText<"Read names of files to link from <file>">,
-     Flags<[HelpHidden]>,
      Group<grp_content>;
 def dtrace : Separate<["-"], "dtrace">,
      MetaVarName<"<script>">,
@@ -182,7 +175,6 @@
 def order_file : Separate<["-"], "order_file">,
      MetaVarName<"<file>">,
      HelpText<"Layout functions and data according to specification in <file>">,
-     Flags<[HelpHidden]>,
      Group<grp_opts>;
 def sectorder : MultiArg<["-"], "sectorder", 3>,
      MetaVarName<"<segname> <sectname> <orderfile>">,
@@ -200,7 +192,6 @@
 def platform_version : MultiArg<["-"], "platform_version", 3>,
      MetaVarName<"<platform> <min_version> <sdk_version>">,
      HelpText<"Platform (e.g., macos, ios, tvos, watchos, bridgeos, mac-catalyst, ios-sim, tvos-sim, watchos-sim, driverkit) and version numbers">,
-     Flags<[HelpHidden]>,
      Group<grp_opts>;
 def macos_version_min : Separate<["-"], "macos_version_min">,
      MetaVarName<"<version>">,
@@ -505,7 +496,6 @@
 
 def v : Flag<["-"], "v">,
      HelpText<"Print the linker version">,
-     Flags<[HelpHidden]>,
      Group<grp_rare>;
 def version_details : Flag<["-"], "version_details">,
      HelpText<"Print the linker version in JSON form">,
@@ -665,7 +655,6 @@
 def sub_library : Separate<["-"], "sub_library">,
      MetaVarName<"<name>">,
      HelpText<"Re-export the dylib as <name>">,
-     Flags<[HelpHidden]>,
      Group<grp_rare>;
 def sub_umbrella : Separate<["-"], "sub_umbrella">,
      MetaVarName<"<name>">,