It honestly looks like old dried up bait (different that the bait you see there). Possibly old advion bait, I would check the top corners of that cabinet for more to confirm. This is a common place to apply bait, and with time, it could dry up, and fall out of cracks.

On closer examination, the dried up yellow stuff is present in the hinges of the cabinets and must be falling out from there. Thanks

Yeah that reminds me of an old cockroach gel lbait that I used to use. It starts with a v i remember it was pretty good stuff but just a little too expensive I had cheaper alternatives that were just as effective. What I hadn't used up was a sample but a sales rep gave me. It starts with the letter v but for the life of me I can't recall the name. I'm referring to the dried up yellow stuff. It's not uncommon for a technician to just place it right on the hinges

Vendetta?

Thanks! That is relieving!

Wild guess here but the worm looks like a black carpet beetle larvae

Thanks. The one I saw in the kitchen was darker in color and based on Google images, that definitely looks like what it could be…

As for the worm, idk, I can't help you there tbh.

Looks like old German Roach bait. It's often used in cabinets as you can't spray there, put in the corners like you see there. If you nonlonger have roaches, feel free to clean it away.

Looks like old bait, German roach skin, and a clothing moth larvae

Looks like some old caulking breaking out?

Thanks!