Port forwarding is easy and self-reliant compared to using a third party's free service though
Not saying that's for everyone but I do feel like the default should be to click the two buttons in your router interface and third parties a fallback option or conscious choice. Probably just as quick as signing up for tailscale, if it weren't for that all routers feel like they need to reinvent a UI so it's never twice the same
Not everyone can get port forwarding, though. If you're stuck behind one of those terrible CGNAT+no IPv6 ISPs, you can't host your own services from home that easily. There are more of those shit tier internet providers out there than you'd hope or expect.
Not saying that's for everyone but I do feel like the default should be to click the two buttons in your router interface and third parties a fallback option or conscious choice. Probably just as quick as signing up for tailscale, if it weren't for that all routers feel like they need to reinvent a UI so it's never twice the same