They announced a new update that does not include a solution to PC problems.

It seems that computer problems delay the entry and lag in online matches, except for the rush, which is difficult for them.

refund.

the fact that they suggest that is a "user issue" or pc issue is just insulting to everyone that try to play this trash

But they did say in the new october feedback update that they will be sharing more details about FC 26 V1.1 before the end of the month and it says that we can expect additional PC optimizations. 

https://www.ea.com/games/ea-sports-fc/fc-26/news/pitch-notes-fc26-feedback-update-october?utm_campaign=fc26_hd_ww_ic_soco_twt_fc-26-october-feedback-update-direct-x&utm_source=twitter&utm_medium=social&cid=86899&ts=1760725255509#fc-26-v11-is-coming-soon

I read the article and they did not confirm that the problem was solved on computers, but they said that they would try because the matter seemed difficult due to the diversity of devices.

I have a Ryzon 2400g. I play Squad Battle and Rush very smoothly without any problems. However, in Rivals, there is a severe lag and I always quit. I haven't played a full match online for two weeks.