Minimal/basically No Decor

That looks like a lovely venue. I probably wouldn't do much more myself. Especially if you'll be the one doing any setting up - the simpler, the better.

We're doing minimal too. Our venue looks pretty similar to yours with lighting on the ceiling along all the exposed wood beams. It's got a very rustic chic vibe. We are going a cloth and curtain light backdrop for our ceremony space, along with a unity candle set, and mason jar centerpieces for the dinner tables with burlap/lace wrapped around the jars, fairy lights inside with the artificial flowers and a napkin coordinated to the flowers underneath with little wooden hearts to scatter around the jars. I have a lovely antique suitcase that I'm going to put favors (carved wood hand fans & antique looking key-bottle openers) & bottles of bubbles for our send off in. Place cards & table #s, cake stand, card box & guest book, and framed pics of my departed brother and grandfather. Oh, and an unplugged wedding sign.

That's about it for us. Our venue is providing all the extra little tables we need, and everything related to dinner (place settings, utensils, linens, etc).

This is what our centerpieces will look like set up on the tables:

This looks so cute! I'm leaning toward nice escort cards instead of a seating chart since those will be taken with the guests as they leave and require no frame or stand but we'll need a tables assigned so I have to communicate that somehow.

Lovely venue. If I were a guest, I wouldn't notice a "lack" of decor if I came into this room. I think it might be the case that nobody (not even FH) will care but me. So maybe I need to let go of thoughts of some of the bigger ideas. The marriage matters more than the wedding but I think I'm just caught up in that when else will I have an excuse to decorate with a wall of lights, etc, etc.

I love simple minimal decor! I think it looks nice in the photo you posted.

Anything above & beyond is just icing on the cake. Personally, I love minimal decor just as much as everything else. It's already amazing to be able to invite & host people. Plus, your venue is already lovely standalone.