I use a 2015 MacBook Pro all the time--like right now. It does have 16GB of memory. It's what sits on my dining room table where I do most of my writing/browsing and which I take for travel. I do have an Apple Silicon MacBook Pro in my office but my downstairs "office" is a lot lighter and airier.
I use a 2015 MacBook Pro all the time--like right now.
I have a 2010 MacBook Air that I still use when traveling.
The battery is completely shot, but it works fine when plugged in. And if I'm on the road, I don't use my computer until I get to the hotel anyway. And even then, it's just fine for e-mail, browsing, and even Photoshop.