I'm still not sure why there is vegetarian Spam, but...
I became a full time vegetarian 10 or 11 years ago. There are still some dishes I miss that had meat in them. Not necessarily the meat itself. Some I have modified to be vegetarian. Other I have not.
All in all there are not a lot I find myself wanting. One is an Italian cold cut sub, another is various dishes made with spam. 20 years ago I worked in a logistics department and most of my coworkers were from the Philippines, I learned to love spam. It was also a great camping food. I would love to try vegetarian spam.
I was very doubtful about this when it first came out, but it was really cheap at one point so I gave it a try, even though I don't like spam. This stuff is delicious.
This stuff is great. Not a vegetarian but I eat plenty of protein alternatives because of family. Un-Meat Plant Based Luncheon Meat Style (you have to say the whole thing) is actually preferable to spam.
There's a vegan sushi/ramen place near me that makes something between musubi and onigiri with vegan spam and they're crazy good. So that's one use for it.
Haven't had this particular brand, but I've made vegan musubi before with another. Turned out great and tbh I couldn't tell the difference. The only downside was the price difference.
I bought one of those vegan Spam-a-likes and I have to say I really didn't like it.
I my thought process was "Spam's so heavily processed, how much worse could it be if no meat were involved?" the answer turned out to be "A lot." I don't know how to describe it. It's like... you know how there are all beef hot dogs, but they don't taste anything like beef? It was kinda that but with Spam... but Spam isn't very meat like to begin with.
All that being said, after the plant based Spam sat in my fridge until it started to get fuzzy, I threw it out for the stray cats in my neighborhood. Despite the fact I found it to be quite unappealing, starving alley cats found it to be meat like enough to eat it... which I guess is a mark in it's favor?