Girlfriend (25F) wants a baby/ring/house when I (27M) feel like we need to solve our problems first?

27 year old guy. This is my first real relationship. I've been with my GF (25F) nearly 3 years. We have lived together for a year and a half. We're not super young, so it's time to get very serious, or move our separate ways.

In my opinion, we have been in a bit of a rut lately. Both me and my GF have had some stressful job situations recently.

Combined, we do very well financially. I work in oil and gas trading, and my girlfriend is a teacher. Even though I make great money, I'm still not really in a "coasting" phase or anything like that. I am also very deep into some of my hobbies, like cycling. So some reasons why I'm not super ready to settle down.

I would say we have had some problems though. In my eyes, here are my frustrations:

1. Me and my girlfriend really don't do anything exciting together. My girlfriend doesn't do sports, which is my main thing. Basically every weekend we just see her family 1 time, my family 1 time, and relax (or do stuff separately). I don't think my GF truly has any "hobbies," outside of watching Tiktoks, going to occasional fitness classes, and seeing her friends. Nor is she really willing to try the things I like. Plus, we don't go out all that often. I don't try to "plan" stuff all the time, because I feel my GF is just truly not interested
2. Our sex life has been very slow recently (like, once a month). She's been even less adventurous than usual. She did go off birth control, but it still hasn't cured it. And on my end, I've been watching more internet porn, which is obviously not healthy.

So, despite these things, we've both been happy enough to stay together 3 years.

My GF is admitting that she's unhappy, and here's what she thinks needs to change. She thinks she's depressed because we live in a ground level apartment, and we should therefore buy a house. She wants me to propose this spring (and is pressuring me to ring shop). And she really wants a baby. All of this is tons of money and a huge commitment.

I legitimately don't have a problem with any of those things...my issue, is that it feels like that is my girlfriends ONLY focus. She's completely not receptive to doing any of the small stuff. She's not willing to do anything with me in the meanwhile, little things to make our relationship better. I truly think if she even tried (as an example) cross country skiing with me, or anything like that, it would make me so happy.

Furthermore, I feel like it's a "trap." I know this makes it sound like she has ill intentions. Rather, it's like she doesn't want to address the problems in our relationship, and just wants me to be tied to her.

Maybe this is really cynical, and maybe this is just a basic incompatibility (different life visions). I'm just annoyed that we are in our mid 20s, and it feels like our lives are so boring. And I'm feeling that even with kids and a house, it would feel even more domesticated.

I'm not saying I want to break up with her, but I hate being under such crazy pressure.

Does anyone have any advice?