What's one Linux app that you wish had a Windows/macOS equivalent?

One thing I didn't expect after switching to Linux was how many genuinely good Linux-first apps I'd end up using.

People often talk about software that's available on Windows but missing on Linux, but I feel like the reverse doesn't get mentioned enough.

Some examples for me: Foliate, Amberol, Mission Center, Warehouse, Bottles , Flatseal etc.

They're not necessarily huge commercial products, but they're polished, focused, and fit the desktop really well.

Every time I have to use another OS, I end up missing some random Linux application that most people have never heard of.

So I'm curious:

What's one Linux app that you wish had a native Windows or macOS version, and what makes it so good?

I'd love to discover some hidden gems I haven't tried yet.

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