Off the top of my head they develop and/or publish:
- Yakuza series
- Persona series and everything else from Atlus
- A bunch of strategy series like Total War and Football Manager
- Sonic series (as mediocre as they are)
And are planning to bring back some new sequels to Dreamcast era games like Jet Set Radio.
So yeah, not as prominent as their hey-day but they are still developing and publishing good games.
On a LAN? Pretty easily if you have a gigabit or greater network. Wi-Fi 6 can do close to gigabit but not consistently and needs to be close to an AP, and it's unlikely a bunch of devices using it at the same time will be able to do maintain that peak. Maybe 6E, although I don't have any devices myself that support it.
And WAN speeds of gigabit and greater have become more common, too.
And this ignores the improvements in latency with Wi-Fi 7, which is definitely an issue with traditional Wi-Fi.