Hi Philip! GA4 data streams do have automatic events that are sent by the code. Since these don't run through Tealium's code and mappings, any data mapped to event params will not show for these automatic events. However, if a param is sent with the config it WILL be included in the automatic events, since config params apply to all events (standard and automatic). The mappings in the box would show as follows:
my_var --> config.my_var_param
If you need to send params with a specific "automatic" event (and not all events), the automatic events can be turned off in the "admin" section (click on the data stream, toggle off "Enhanced Measurement") and triggered through the Tealium tag. Params can then be mapped to send with that specific event (ex: scroll events).
This also doesn't cover the "page_view" event, as that automatic event can only be turned off with a boolean (set in the tag configuration for "Send Page View"). If this setting is set to "false", you can then map the "page_view" event and send the desired params with that event, as it would then pass through Tealium's code instead of coming from Google's code.
Hopefully this helps with your GA4 configuration.
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