Take a deep breath and step back from your FLF and enjoy its overall appearance rather than worrying about minor imperfections. I see nothing in the photos that is cause for concern unless you are a perfectionist.
Your concern about direct sunlight is unwarranted. Indoor direct sun is fine.
Because you repotted it, it does not need fertilizer.
Unless your tap water is hard, there is no need to use filtered water. When you water, give it enough so that a bit trickles through the drain holes. As long as the pot it is growing in does not sit in water for more than a couple of days, it is not a problem. No need to schlep it to the sink every day. A once-weekly thorough watering should be sufficient.
Fiddle-leafed Figs are very hardy indoor plants that don't require much fussing. As long as they are in a moderately sunny location and watered thoroughly each week, they are pretty much trouble-free, even though they will have some imperfections.
Enjoy!
