Lost cat (missing senior cat)

Hello everyone, I’m resurrecting my Reddit account in hopes of finding anyone in The Arlington area. Specifically Raymur Villas, Arlington Hills area that may have seen my friend’s cat. He went missing last Thursday (02/13), we saw him physically before work that morning. We’re not sure how he got out but he did. The only information we have is when he was spotted on a neighbors ring door bell Friday night. Since then, we’ve not found any trace of him. We’ve done almost everything we could think of to bring him home, we have the garage door cracked, other points of access open. We’ve left out food, water. Things the smell like the home outside. I’ve posted on countless facebook groups, Nextdoor and ring neighborhood app. I’ve posted on paw post and other missing cat websites. We’ve printed and posted flyers all over the neighborhood. Gone out for walks around the neighborhood multiple times a day, including going out late a night with flashlights. We’ve even spoken to neighbors in passing too. I’m at a loss on finding him. Please, if anyone has seen him send me a message on here. Any other tips are welcomed as well, just want to get him home. 😔