It has worked fine for me.
I cut the Crowsfoot or highway grass & Bahia with no roots or seeds & compost or mulch with them.
Both green & dry, not even the wild onion/wild garlic top seem to be a problem (no seed bulbs).

Don't do it! If you ever have bermuda anywhere near your gardens you will never get rid of it. It is the Kudzu of the southwest. It is not worth taking a chance.

Horrible stuff. I only compost it after it's sat in the hot summer sun for a few days until it's dead, dead, dead. Then I let it sit some more to make sure.

Did I miss something!
Trimmings should not have seeds in them or roots.
But It may be safer to compost first.

Eveything I have read about Bermuda Grass says it spreads by stolens, rhizomes, and seeds. As long as the grass clippings from your Bermuda Grass does not contain any seeds, stolens, or rhizomes they should be a good material to use for mulch or composting. I would doubt that Bermuda Grass clippings would germinate anymore then would Kentucky Blue Grass clippings.

You can't trim bermuda without getting some stolons (the runners) ... so you risk having some of them survive and take root.

Go ahead and use it, but be VERY vigilant about checking for sprouts when it warms up.

Yeah, the runners run on top of the ground as well as beneath, and all you need is that little joint along the runner to get into the clippings and it's Katy bar the door!

I already have a Bermuda grass problem in my garden, I just don't want to make it worse. I can usually control it with mulch until the plants get big enough. I'm trying to mulch deeper this year.

I have it in my garden too, probably came into the compost pile with curbside grass clipping bags because I don't have a bermuda lawn and it started next to the compost pile. Can't get rid of it, I just have to pull and dig and mulch to keep it in check. It's like a chronic disease that can be controlled but not cured.

Would large thick cardboard boxes help?
Or would something that thick be in the way of the plants.
You maybe able to put the thick boxes down & start a no-til bed on top. This would choke the grass out for the summer & it may die, before the boxes rot or are eaten by worms.

jolj, as has been previously discussed here Bermuda grass covered with newspaper, or cardboard, will die for a time but like the Quack Grass here it will send out rhizomes that will reinvade the area so covered.

It can run pretty deep to get under obstacles and pop up somewhere else. Scorched earth treatment on the surface will not kill the roots and runners below, and they will come back up. Like The Terminator, it just won't quit.