As @jordanlund@lemmy.world says, most Americans will not have attended. To add some additional context:

• Only about 1/3 of the tickets are allocated to the participating teams to distribute (generally giving premium/long-tenured/whatever season-ticket-holders a right of first refusal at the extortionate prices) Here is a breakdown that I assume is decently sourced and jibes with the conventional wisdom. Partly because of this, the crowd at the super bowl is known to be large but underwhelming and "plastic" even by American standards.

• The super bowl is better on TV in large part because high level American football has been engineered to be an ideal sport for TV consumption. It's naturally a very stop-and-start game, and rule changes (some explicitly for the benefit of broadcasters) have doubled down on that. There is unfortunately a lot of down-time when you're at the stadium in person, and games take 3 to 3.5 hours on average, with some variability, versus the fairly predictable 2 for a regular league match of association football. While you will see a lot of ad breaks on a broadcast, you're not a captive audience at home like you are in the stadium. Still, in the streaming era, live sports has been a reliable and lucrative legacy revenue flow that only may now be cresting.

• For the Super Bowl in particular, this means that for decades the game has been the showpiece for the advertising industry to launch new campaigns, try to make lavish and meme-worthy ads, and just generally flex. Famous super bowl ads live in the American consciousness for a very long time, and it remains a bastion of the eroding monoculture. It's also even longer than most games.

• Speaking of which, the halftime performances (and to a lesser extent the de rigeur national anthem performance) are also cultural touchstones, and are generally better experienced at home.

• Because of all that, the "super bowl party" is the most iconic way Americans experience the game, so it becomes a social event, but not a die-hard sporting event, except for fans of the teams involved, or if the play lives up to the standard the NFL and media hopes for (not guaranteed due to the rhythms of american football and the NFL league calendar).