If you want to create a filter for the whole report, instead of applying them one by one to your widgets, you would need to create a source filter for that. You can click here to find a step-by-step guide on how to do that.
Here is a list of integrations that support a source filter:
Google Analytics 4
Active Campaign
Adform
AdRoll
Ahrefs
Amazon Advertising
Basis
BigCommerce
BigQuery
Callrail
CallTrackingMetrics
Campaign Monitor
Criteo
Matomo
Trade Desk
Taboola
Magento
Facebook Ads
Piwik Pro
SE Ranking
Accuranker
Constant Contact
Reddit Ads
Reddit Organic
Facebook Page
Google Ad Manager
Google Campaign Manager 360
Google Display & Video 360
Google My Business
Google Search Console
HubSpot
Instagram Business
Klaviyo
LinkedIn Ads
Google Ads
Google Sheets
LinkedIn Organic
Custom API
Mailchimp
Microsoft Ads
Pinterest Ads
Pinterest Organic
Salesforce
Search Ads 360
Semrush
SEOmonitor
Shopify
Simplifi
Snapchat
Spotify Ads
StackAdapt
TikTok Ads
TikTok Organic
Youtube