This discrepancy might be arising due to differences in the timing of data availability between Google Analytics 4 (GA4) and BigQuery. In GA4, data usually shows up in reports within a few hours of it being collected, but sometimes it can take longer. However, with BigQuery, exported data is typically available in just a few minutes. Therefore, it’s possible that you’re seeing the excluded data in BigQuery before it’s had a chance to show up in your GA4 reports. Additionally, if the filters have been applied recently in GA4, it could take up to 24 hours for changes to affect the data in your reports. Hence, consider checking later to see if the excluded data displays correctly. Lastly, make sure that the same exact filters are being applied in both platforms for a fair comparison.