One is the official flag waver, the other is usually some celebrity.
I'd assume drivers would want a proper flag wave than whatever the hell this was:

Welcome to Formula1 @ lemmy.world Lemmy's largest community for Formula 1 and related racing series
๐ F1 Calendar
๐ FIA Documents
| Location | Date |
|---|---|
| ๐ฎ๐น Italy (Monza) | 04-06 Sep |
| ๐ช๐ธ Spain | 11-13 Sep |
| ๐ฆ๐ฟ Azerbaijan | 24-26 Sep |
| ๐ธ๐ฌ Singapore | 09-11 Oct |
| ๐บ๐ธ USA (Austin) | 23-25 Oct |
| ๐ฒ๐ฝ Mexico | 30 Oct-01 Nov |
| ๐ง๐ท Brazil | 06-08 Nov |
| ๐บ๐ธ USA (Las Vegas) | 19-21 Nov |
| ๐ถ๐ฆ Qatar | 27-29 Nov |
| ๐ฆ๐ช Abu Dhabi | 04-06 Dec |
1. Be respectful.
Treat drivers, teams, and fellow Lemmings with respect. Healthy debate is encouraged, but keep it civil and constructive.
2. No duplicate news.
Please check the feed before posting. Multiple posts from different news companies reporting the exact same thing will be removed to keep the feed clean.
3. Spoilers.
This is a live sports community. We discuss sessions in real-time, so browse at your own risk during race weekends!
4. Make content accessible.
โข Non-English articles: Include a translated summary (e.g., DeepL).
โข Paywalled articles: Provide a brief summary in the comments.
5. Social media.
Post social media updates as screenshots so everyone can view them without needing an account. Always include the original source link.
6. Zero tolerance for spam. Strictly no gambling, crypto, or NFT-related content.
One is the official flag waver, the other is usually some celebrity.
I'd assume drivers would want a proper flag wave than whatever the hell this was:

Oh wow, I never knew this. But of course, it makes sense that a) the FIA would not allow a celeb to actually end the race and b) that FOM would sell that if they could
Well in the past it used to be one flag and they did let celebs wave it. In 2018 during the Canadian GP Winnie Harlow waved the checkered flag a lap too early and thus the race had to end a lap earlier. It wasnโt her fault though, she was instructed to wave it. Guess they donโt trust the stewards anymore to not be distracted by the presence of a celeb. I mean I would if I was standing next to Ana de Armas
Thereโs always two. One is the official FIA flag (the top one outside race control), and the other is the celebrity-waved one that they sell the squares on.
EDIT: For example, hereโs Brazil this year: 
Seems like you're right!
I just looked up some previous finishes, and indeed also two flags! It just never registered with me until now. Thanks!
Going from memory, but...
I think one is official and one is ceremonial and has names on it with people and orgs that sponsored the race.
Maybe one for the drivers and one for the cameras? I see that the top one has a big FIA logo on it, but I don't know if that matters.
Thinking about it, I remember that the official weaver was actress Ana De Armas and maybe UAE wouldn't like a woman doing something (it's an Islamic country after all).
Top one seems to me like MBS himself! He also came into the cool down area to weirdly grab Norris' hair!
It was always two flags for the last couple of seasons.
Hold on. Do they not do the double waved checkers for the final anymore? Or have I Mandela'd myself?

Double waved rainbows is pretty cut and dry, you have been investigated by the stewards and found to be fabulous.