Send Google Analytics event parameters with every event to more than one tag - see https://ithoughthecamewithyou.com/post/send-event-parameters-with-every-event-and-multiple-tags-in-google-analytics-4

gtag-parameters.js

// from https://developers.google.com/analytics/devguides/collection/ga4/event-parameters?client_type=gtag
gtag('set', {
  'page_title': 'Travel Destinations',
  'currency': 'USD'
});
// Place your config commands after the set command like follows
gtag('config', 'G-XXXXXXXXXX-1');
gtag('config', 'G-XXXXXXXXXX-2');
gtag('config', 'G-XXXXXXXXXX-3');

// that doesn't work for me, instead I do:
var eps = {'page_title': 'Travel Destinations', 'currency': 'USD'};
gtag('config', 'G-XXXXXXXXXX-1', eps);
gtag('config', 'G-XXXXXXXXXX-2', eps);
gtag('config', 'G-XXXXXXXXXX-3', eps);