I don’t know if anyone posted this yet, but that “thingy” on the bottom was/is technically called a “prominence”, not a solar flare.
https://qz.com/2024-total-solar-eclipse-bright-red-dots-1851397840
If you don’t want to read the entire article….
Prominences, unlike solar flares, are anchored to the Sun’s surface in the photosphere, extending outward into the corona. By contrast, solar flares rip themselves from the star’s surface, propelled by intense magnetic activity. Prominences, also known as filaments, take about a day to form and can last for several months. They’re also massive, looping hundreds of thousands of miles into space.