27Mbps isn't even broadband, when the native carrier's network can deliver 400Mbps and their resellers are hovering around 200Mbps to 400Mbps yet a Pixel 8 on Fi is stuck with stuttery, slow data due to having a very low QCI on the LTE/5G network, only Google is to blame.
Fi's international roaming appears to be a cut down version of T-Mobile's roaming agreements, and they have been more aggressive in bricking lines roaming internationally as of late: https://www.reddit.com/r/GoogleFi/comments/1e2juxu/internati...
Allen and Two Temps (deathstar) is no joy to work with, but I'd hesitate to jump in with what is clearly a legacy offering by Google. The pricing is not good, they are not adding new features to the platform, and it is not a corporate priority.
You are much better off using a vendor that is actively and solely focused on delivering the best wireless experience. Don't accept some companies forgotten overpriced afterthought as your carrier, they will happily hang up on you when a real issue arises just like they did to the redditor above.