I've been running the GA4 to BigQuery Streaming export for over a month now because the amount of daily events is bigger than the daily export limit (currently around 1.5 million events per day).
Google docs (https://support.google.com/analytics/answer/7029846#tables): If the Streaming export option is enabled, a table named events_intraday_YYYYMMDD is created. This table is populated continuously as events are recorded throughout the day. This table is deleted at the end of each day once events_YYYYMMDD is complete.
According to the docs I should have events_YYYYMMDD tables for previous days and events_intraday_YYYYMMDD table for current day. But that's not the case - all I'm stuck with are events_intraday_YYYYMMDD tables for previous days.
This is the same issue reported in the following posts (I actually copied and pasted from the first post):
BigQuery events_intraday_ tables are being generated daily but no daily events_ table is created
Firebase Analytics doesn't export events table to Bigquery, even though streaming export is enabled
GA4 exports only intraday tables to BigQuery
Unfortunately, none of these posts have a solution and I don't yet have enough reputation here on SO to post a comment to them. I'm currently not paying for Google support because I'm still evaluating GA4, so I’m hoping someone here can provide an answer (and maybe then I can share it with the other's that had the same problem).