diff --git a/packages/nc-gui/components/smartsheet/grid/GroupBy.vue b/packages/nc-gui/components/smartsheet/grid/GroupBy.vue
index 2be6fe5164..20c9215702 100644
--- a/packages/nc-gui/components/smartsheet/grid/GroupBy.vue
+++ b/packages/nc-gui/components/smartsheet/grid/GroupBy.vue
@@ -169,7 +169,7 @@ const parseKey = (group: Group) => {
     return [parseStringDateTime(key, timeFormats[0], false)]
   }
 
-  if (key && group.column?.uidt === UITypes.User) {
+  if (key && [UITypes.User, UITypes.CreatedBy, UITypes.LastModifiedBy].includes(group.column?.uidt as UITypes)) {
     try {
       const parsedKey = JSON.parse(key)
       return [parsedKey]
diff --git a/packages/nc-gui/components/smartsheet/toolbar/FilterInput.vue b/packages/nc-gui/components/smartsheet/toolbar/FilterInput.vue
index e48e4aa054..67837744fa 100644
--- a/packages/nc-gui/components/smartsheet/toolbar/FilterInput.vue
+++ b/packages/nc-gui/components/smartsheet/toolbar/FilterInput.vue
@@ -19,6 +19,7 @@ import {
   isPercent,
   isRating,
   isReadonlyDateTime,
+  isReadonlyUser,
   isSingleSelect,
   isTextArea,
   isTime,
@@ -87,6 +88,7 @@ const checkTypeFunctions = {
   isTextArea,
   isLinks: (col: ColumnType) => col.uidt === UITypes.Links,
   isUser,
+  isReadonlyUser,
 }
 
 type FilterType = keyof typeof checkTypeFunctions
@@ -155,6 +157,7 @@ const componentMap: Partial<Record<FilterType, any>> = computed(() => {
     isFloat: Float,
     isLinks: Integer,
     isUser: User,
+    isReadonlyUser: User,
   }
 })
 
@@ -181,6 +184,12 @@ const componentProps = computed(() => {
     case 'isUser': {
       return { forceMulti: true }
     }
+    case 'isReadonlyUser': {
+      if (['anyof', 'nanyof'].includes(props.filter.comparison_op!)) {
+        return { forceMulti: true }
+      }
+      return {}
+    }
     default: {
       return {}
     }
diff --git a/packages/nc-gui/composables/useMultiSelect/index.ts b/packages/nc-gui/composables/useMultiSelect/index.ts
index 347f581bdf..e8974573e1 100644
--- a/packages/nc-gui/composables/useMultiSelect/index.ts
+++ b/packages/nc-gui/composables/useMultiSelect/index.ts
@@ -112,7 +112,7 @@ export function useMultiSelect(
       textToCopy = !!textToCopy
     }
 
-    if (columnObj.uidt === UITypes.User || columnObj.uidt === UITypes.CreatedBy || columnObj.uidt === UITypes.LastModifiedBy) {
+    if ([UITypes.User, UITypes.CreatedBy, UITypes.LastModifiedBy].includes(columnObj.uidt as UITypes)) {
       if (textToCopy && Array.isArray(textToCopy)) {
         textToCopy = textToCopy
           .map((user: UserFieldRecordType) => {
diff --git a/packages/nc-gui/composables/useViewGroupBy.ts b/packages/nc-gui/composables/useViewGroupBy.ts
index 46cf8c1c79..8574c84018 100644
--- a/packages/nc-gui/composables/useViewGroupBy.ts
+++ b/packages/nc-gui/composables/useViewGroupBy.ts
@@ -90,7 +90,7 @@ export const useViewGroupBy = (view: Ref<ViewType | undefined>, where?: Computed
       return value ? GROUP_BY_VARS.TRUE : GROUP_BY_VARS.FALSE
     }
 
-    if (col.uidt === UITypes.User || col.uidt === UITypes.CreatedBy || col.uidt === UITypes.LastModifiedBy) {
+    if ([UITypes.User, UITypes.CreatedBy, UITypes.LastModifiedBy].includes(col.uidt as UITypes)) {
       if (!value) {
         return GROUP_BY_VARS.NULL
       }
@@ -161,11 +161,7 @@ export const useViewGroupBy = (view: Ref<ViewType | undefined>, where?: Computed
         acc += `${acc.length ? '~and' : ''}(${curr.title},${curr.key === GROUP_BY_VARS.TRUE ? 'checked' : 'notchecked'})`
       } else if ([UITypes.Date, UITypes.DateTime].includes(curr.column_uidt as UITypes)) {
         acc += `${acc.length ? '~and' : ''}(${curr.title},eq,exactDate,${curr.key})`
-      } else if (
-        curr.column_uidt === UITypes.User ||
-        curr.column_uidt === UITypes.CreatedBy ||
-        curr.column_uidt === UITypes.LastModifiedBy
-      ) {
+      } else if ([UITypes.User, UITypes.CreatedBy, UITypes.LastModifiedBy].includes(curr.column_uidt as UITypes)) {
         try {
           const value = JSON.parse(curr.key)
           acc += `${acc.length ? '~and' : ''}(${curr.title},gb_eq,${value.map((v: any) => v.id).join(',')})`
diff --git a/packages/nocodb/src/db/conditionV2.ts b/packages/nocodb/src/db/conditionV2.ts
index 87de9140c6..d4a73afd62 100644
--- a/packages/nocodb/src/db/conditionV2.ts
+++ b/packages/nocodb/src/db/conditionV2.ts
@@ -458,6 +458,9 @@ const parseConditionV2 = async (
       ) &&
       ['like', 'nlike'].includes(filter.comparison_op)
     ) {
+      // get column name for CreatedBy, LastModifiedBy
+      column.column_name = await getColumnName(column);
+
       const baseUsers = await BaseUser.getUsersList({
         base_id: column.base_id,
       });