Instead of trying to lighten ( sounds like a whole thing)

Paint all your trim a dark color like that green in the picture I did this with mayan ruins by behr for the trim and it looks beautiful against the wood paneling

So all the white trim including the windows paint

Alternatively if you really aren't a fan of green brown colors a navy blue would also look nice

https://todayshomeowner.com/woodworking/guides/ask-danny-how-should-i-lighten-my-wood-paneling/#:~:text=Applying%20wood%20bleach%2C%20oxalic%20acid,touch%20to%20your%20dark%20paneling.&text=One%20approach%20for%20lightening%20your,finish%20to%20lighten%20the%20tone.

Here is Beth H's suggestion from 6 years ago on Houzz:

Using watered down chalk paint would probably be the best solution and finish perhaps with a matte varnish to keep the paint in good condition.

IMO you now need to paint the pannelling since the fake wood floor and that real wood do not work together at all.