If you've done screwed-up and purchased a US-based Game Pass? Yes, you're only going to get replayed games and (probably) other restricted access.
If you haven't purchased the US-based "NFL Game Pass" yet, then I'm screaming at you (virtually) to "STAWP!". Search "NLF Game Pass International". This is what gives you "Live" games and more....to get that, you need to setup a VPN account, spoof another country ( I use Germany because I use to live there), and then you can purchase a subscription to NFL Game Pass "International". It's now probably the same price as US ( Game Pass Intl used to be $270, then $199, now $170 with, unfortunately, a more US game pass feel). For $170, you can watch any and every game live or on demand. Pre-season, regular season or post season.
The catch is, you have to have a VPN to spoof your IP. Personally, I've used "Strong VPN" for the past 7-8 years and it costs some money (I think 10$ a month) while you could probably get away with some sort of free bootleg VPN service or a cheaper service (maybe 5-7$ a month?), the same remains...you can't have a US IP address to access/purchase the NFL Game Pass, much less access the content once you do. In the past, all you needed to do is spoof until you bought Itnl Game Pass, logged-in, and then switched off the VPN (to get better speeds with a US based internet routing) and then enjoyed NFL bliss. Now, you have to be fully plugged into a VPN from beginning to start, so it better be a good one. It's all about the IP addresses.
Bottom Line: If you want full, real time NFL access (without Direct TV/'Sunday ticket'....which is still limited), the only and cheaper option is NFL Game Pass International.