First:

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Let's see what everyone has to suggest.

What would happen if you switched positions of the two couches? The larger against the railing with the two ottomans? Lots of room and comfy to watch the t v.

Loveseat goes on the longer wall, facing the slider and you add art to that wall, two floor lamps and throw pillows to both sofas.

I would remove the book case next to the fireplace and replace with a floor plant. Choose a planter in the tones of the room.

If you are up for it, stain the bricks the same color as the walls. Your paint paint store can help you.

I will definitely report. I paid via Venmo and probably won’t recoup the money but will try! Ugh.

Long couch is too big to fit against railing. I can move the other ottoman over… I appreciate your reply. Thank you!

More pics with more light from different corners would help. Is the floorplan accurately to scale? including the sofas and ottomans? I'd like to swing the smaller sofa onto the wall space opposite the longer sofa. Put the tv on a very low almost on the floor 'stand' just the length of the base. Place it in front of the railing. Use one ottoman on the end of each sofa away from the tv. There may be enough room to move the sofas off the wall a couple inches.

Place the sofa by the railing

Those sectionals are going to be very hard to place. Would suggest you sell them and use the proceeds to buy a sofa and chairs. Those will be much easier to place in your living room in a sensible manner.

Sorry that happened to you :(

one thing that jumps out to me is the lighting - I’d really try to not use the overhead light and add some lamps - perhaps a floor light next to the sofe closest to the brick wall and then maybe a narrow end table and lamp next to the sofa where you have the drink holder - better lighting will help the room seem cozy and inviting at night

fwiw i used this little inexpensive table for a tight spot and it works great https://www.wayfair.com/furniture/pdp/trent-austin-design-grinnell-parmelee-end-table-w005001636.html

(controversial I know, but I’d paint out the brick wall 🫣 and remove the undersized mantle)

I know you said you painted but could you repaint? The gray walls with the gray sofa and beige rug are pulling all the life out of the room. Maybe an off white? Then you could add an area rug and pillows to pull the colors together. Maybe keep the sofa but sell the loveseat and use the money for a pretty chair. I know it would be a loss but I think it would help enormously. If you use the garage to come into the house, is there a spot out there where you can hang backpacks and drop shoes? What's your budget to complete the room?

It looks like the chaise parts are not attached. I would use them as "ottomans" together in front of the long sofa, place a tray on the new ottomans for drinks etc, then centre the love seat in front of the railing. Do you come in through the garage door mostly? Are you in a 4 season region?