Does anyone ever look at their previous workplace websites (Facebook, LinkedIn etc.) and just get sad?

I was laid off in June from a construction company admin position. I was really saddened I was let go as it was a very unexpected lay off during the summer months where we were always busy. They cited “changing in the market” blaming interests rates. I wasn’t the only one let go as two more admin team members and a long time manager was also laid off weeks after me. The company boosted about never having lay offs even during Covid and 08 crisis. It hit me harder than it should when I got laid off. They claimed they would most likely never fill that position again.

I casually was scrolling on Facebook and had forgotten I was still following them. I saw a picture of another admin that I didn’t recognize sitting at my desk, smiling for a picture. They even said her title which was my previous title. I was astonished they filled that position back up so quickly (makes me think she was hired internally from another sister company.) I was left there in shock. I kept thinking “how come I never saw a job posting?” I really thought my boss was genuine about if the position opened up again he would contact me (I admired him and he was pretty genuine all the time).

I was hired in August for a different position that has been treating me good and has a lot of flexibility and growth. But yet I still seem to miss that place. I can’t put my finger on it. But if it wasn’t for them I wouldn’t have gotten the job I have now so it feels weird seeing someone in my place at one time. I really should just unlike their page and unfollow their LinkedIn but not sure if that’s a good idea or not.

Anyone been in my shoes? How did you process it?

Edit: everyone brings valid points about cutting ties and moving forward. I decided to unfollow and block the company including the linked in and Facebook. Best to just keep moving forward with my new job. Thank you for the reassurance.