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Ostrich Fern actually do like a little dappled sunshine. Make sure the crowns are not too far out of the soil. Soil should be moist to ensure healthy ferns.
Wind can be an issue, breaking the fronds.
https://www.gardeningknowhow.com/ornamental/foliage/ostrich-fern/growing-ostrich-ferns.htm

You can always dig up the clumps and divide the rhizomes to share with others. Also, in the spring as the new fronds emerge, the ones that stay shorter will have the spores on the back. Removing those fronds may save you from a bunch of new ones grown from spores. Here is more info:
https://www.gardeningknowhow.com/category/ornamental/foliage/ostrich-fern

They reproduce by spores and spreading underground rhizomes so you can be vigilant and remove the fronds with spores. Other plants can be dug and given to friends or donated to plant sales by area nonprofits.

If you decide to remove the whole group, an herbicide might be helpful. If you decide to dig up the whole clump, be sure to get all the rhizomes you can.

https://www.gardeningknowhow.com/ornamental/foliage/ostrich-fern/growing-ostrich-ferns.htm

Those should be easy to find at your local nurseries or big box stores. If not, you can order them online from reputable dealers. I would steer clear of the online auction houses tho.

https://www.gardeningknowhow.com/ornamental/foliage/ostrich-fern/growing-ostrich-ferns.htm

Yes, you will want to lift the ferns and this is good time to do so.
You can also divide them at this time.

https://www.gardeningknowhow.com/ornamental/foliage/ferns/transplanting-ferns.htm

Unfortunately, your photos did not come through. Leaves curl for a number of reasons, including not quite enough humidity, low air flow, and even overwatering.

Here is an article to help you care for ferns indoors:

https://www.gardeningknowhow.com/houseplants/ferns-houseplants/growing-ferns-indoors.htm