I don't want to be a "Debbie Downer" about image quality for Instagram. At the end of the day, everyone is seeing your work(s) on a tiny screen. Even if people use the pinch-zoom, it's not really the real "pixel peeping" like we could zoom in Photoshop.

I tell everyone I know to upload their images in PNG format and resize everything based on 1080 pixels width.

Source: https://help.instagram.com/1631821640426723.

I frankly don't care about image quality on apps, as long as my image(s) don't have any wonky tints or unwanted color shifts. If you're worried about image quality, PRINT it out using a professional printing labs, e.g. Bay Photo Lab here in California or others across the US or region of your residence.

Instagram and Facebook algorithms for image quality is biased against reds. I know this from experience, because the "tan" in my logo is a deep-dark red. When uploading to Instagram either on #212121 or #FFFFFF, the deep-dark red got compressed to the level that I find is abominable.

In that regard, I certainly care about the image quality due to the clear and beyond reasonable doubt of the ugly jaggies I'm seeing in my name. If the image quality or the compression artifacts are in the regions not noticeable to the naked eye, I could look pass it. Depending on who is looking at your Instagram images, I don't think the average person will notice the jaggies/compression artifacts.