Coworker bridal shower?

I've never heard of a separate bridal shower for coworkers, but that doesn't mean it's not a thing. Maybe you could suggest having a potluck at work as a congratulations/going away party for you to make it less awkward, especially if you don't plan to invite them to your wedding.

This is usually an exception to the rule that if they're invited to the shower, they must be invited to the wedding. It's not uncommon for coworkers to throw bridal and baby showers for people.

No it's not rude. An exception can be made if they want to throw you a small shower at work, no need to worry about inviting them to the wedding. It's common in our office for everyone to pitch in for a cake and contribute towards some gifts/giftcards

It's common in offices to throw bridal showers and not be invited to the wedding.

It's totally fine. You see these people 40 hours a week, they just want a chance to celebrate you. Usually it's cake and punch in the conference room during lunch time. Nothing fancy, but a fun time.

Thanks guys! My boss is still under the impression that I'm not allowed to leave in September (or ever) haha so I'm hoping a shower/going away party will provide some closure

Work showers and church showers are different. There is no expectation that the guests are going to be invited to the wedding. It's thrown by a co-worker and the only guests are co-workers. Totally safe to accept.

Firstly, unfortunately, I work in a toxic environment.

a coworker is having a bridal shower and invited everyone. 4 out of 8 of the have declined and refuse to go in on group gift. Does the bride to be still need to invite them to wedding?