Game is absolutely unplayable on EA servers

Battlefield 6 Official Servers Bug Report

System

Device: GMKtec NucBox M7 Pro
CPU/APU: AMD Ryzen 9 PRO 6950H with Radeon Graphics
GPU: Integrated Radeon 680M-class graphics on the 6950H APU
Display: Dell S3222DGM via DisplayPort
Resolution / refresh normally used: 2560x1440 at 144 Hz
Connection: Wired Ethernet
OS: Windows 11 25H2
BIOS observed during testing: NucBox M7 Pro 1.01

Problem Summary
Official EA Battlefield 6 servers become unplayable, while Battlefield Portal servers and Fortnite run normally on the same PC and same connection.

Symptoms on official servers

TN rises into the hundreds or thousands of milliseconds
Severe stuttering / rubberbanding
Character movement becomes difficult or impossible
Sometimes the game eventually crashes
Task Manager may show CPU speed collapsing to very low values during the failure
Real ping remains normal while TN explodes

Observed metrics during failure

Latency stays around 19 ms
Packet loss stays at 0%
TN has been observed around 384 ms, 1,877 ms, and roughly 1,996 ms
In the worse state, the game can become effectively frozen and then crash

Important contrast

Battlefield Portal: works normally / smoothly
Fortnite: works normally
Official Battlefield servers: unplayable

This appears to be specific to the official-server path, not general PC performance or general internet connectivity.

What was tested

Wired Ethernet connection
Traceroute / route to EA appeared normal
Packet loss remained 0%
FSR disabled
Frame generation disabled
Future frame rendering disabled
Game repaired
IPv6 tested
Fullscreen optimizations disabled
Windowed mode tested
Borderless tested
Fullscreen tested
V-Sync tested off
Local Battlefield settings/profile files reset and rebuilt
EA Javelin anticheat reinstalled
BIOS performance mode tested

Results of testing

Windowed mode improved the issue somewhat, but I do not want to play in windowed mode
Borderless is somewhat less bad than fullscreen, but still broken on official servers
Fullscreen and borderless can both trigger the issue
Changing BIOS to Performance mode did not fix the problem and seemed to make it worse
Reinstalling EA Javelin anticheat did not fix the problem
Resetting Battlefield config files did not fix the problem
The issue remained limited to official servers

Why this does not look like a normal network issue

Real latency remains low and stable
Packet loss remains 0%
Portal and Fortnite work fine on the same machine and same connection
TN rises dramatically only in the broken official-server scenario

Why this does not look like a general PC failure

Other games work
Battlefield Portal works
The failure pattern is specific and reproducible on official servers
The issue survives game repair, config reset, anticheat reinstall, and multiple display-mode tests

Request
Please investigate this as an official-server or official-server-client-path issue affecting this hardware/software combination, especially on AMD APUs such as the Ryzen 9 PRO 6950H / Radeon integrated graphics class.

Suggested areas to investigate

Official-server-only regressions versus Portal
TN spikes with normal latency and zero packet loss
Client stalls related to official-server backend activity
Interaction with EA Javelin anticheat on official servers
AMD APU / presentation / fullscreen-borderless behavior on official servers
Any Season 3 regression affecting AMD integrated graphics or Ryzen 6000-series APU systems

Repro summary

Launch Battlefield 6 on this system.
Join an official EA server.
Observe TN rapidly rising while normal ping remains low.
Game becomes severely stuttery or unplayable.
In some runs, the game crashes.
Join Portal on the same PC/connection and the issue does not occur.

Please treat this as a reproducible official-server issue rather than a general connection problem, because the behavior differs sharply between official servers and Portal under the same local conditions.