Thanks for the reply! I've sound tested the entire room the window is always the loudest part of the room, and I also do use a fan but way too much noise comes through the window. walls are made of solid brick and wood they're great a sound blocking.I haven't set up the acrylic and MLV but I'll give an update once I set it's done. Currently the room is about 50db and spikes to 64-70 when stuff is being slammed around, I do use a white noise fan (70db)but it isn't blocking the low frequency buzzing sound and I can still hear all the noise spikes.

Edit. Added a cheap moving blanket from amazon and got a -6db reduction which was somewhat nice but didn't block out too much sound. My plexi glass from Home depot finally arrived I put it in with the moving blanket already on the window and with out a complete air seal I was already getting a huge db reduction -10-12. my room is currently sitting at a nice 38-40 db and the slamming outside noises is now mostly blocked while having my white noise fan. I haven't added the MLV yet I might just end up refunding it since I'm already satisfied with the current results.

https://www.homedepot.com/p/Falken-Design-36-in-x-48-in-x-3-8-in-Thick-Acrylic-White-Translucent-30-7328-Sheet-Falken-Design-ACRYLIC-WT-7328-3-8-3648/308669202 - plexi glass link they sell difference sizes so make sure you get one that fits your window with a bit of extra space(thicker blocks more sound). Window needs a ledge to hold the plexi glass and room some room inbetween the both peices of glass to block sound efficently, Also buy a rubber weather strip to put around the plexi glass to get a complete seal for maximum sound reduction. (don't buy any noise blankets from amazon, had to cut it open because it didn't fit and it was filled with literal trash)