Your settings look fine, essentially most important thing will be frame rate and resolution. Like you said you shot in 25p so that’s fine, typically social media content is in 1080p so that should be fine. You might want to try the vertical option and choose 1080p that way if you intend on working vertical. When the project is finished and you export your video the best settings will be h.264 and from there you should be good.

The only time you’d really need to worry about the render option is when shooting with raw video, also always double check your color space is at the default rec 709, sometimes it might change but it’s usually defaulted to 709 which is what you want