There's also the option of just using VMs instead of dual-booting.

This is what I use for my work. I have a specific work VM where I have everything Windows-exclusive that I need installed. Saves me the hassle of having to reboot when I quickly need something from Linux or Windows. Or having to deal with broken bootloaders.

There's a tiny bit of a learning curve to managing VMs though, and performance of a VM is of course not up to par running a native Windows installation directly.

For example, you won't be able to record and mix audio because of the latency. I still keep a Windows installation specifically for that.

But for basic connecting to the office VPN, running MS Office, etc., it's alright.

Mukhang alam mo naman ginagawa mo, I'm wondering kung bakit dito ka nagtatanong at hindi sa Linux subreddits? :)

I would suggest though na dagdagan mo pa ng 50GB yung Windows partition mo, mabilis mapuno yun with updates, etc.

By the way, your partitioning seems fine except for the root. It's tough to upgrade rolling releases with that little space.

Although I see that you do have what looks like pacman package cache in a separate partition, so maybe it'll be fine. I don't really have experience separating that directory. And you can resize via LVM anyway.

I'd also consider using a swapfile than a swap partition, but it's not that big a deal.