A few observations:
Only a few allow extremely high burn. Only 4 companies have a revenue to burn ratio below -1x. Snowflake, Gitlab, Sentinel One, and Qualtrics are the violators here, for instance Snowflake at IPO had operating loss of -$358mm versus revenue of $264mm. It’s a fraught road to allow a business to generate such a high level of burn relative to revenue, and as you very few that went public in the past few years have pulled it off.