EA anticheat is a kernel level anticheat, which are generally bad for consumers due to them giving malware new targets to get full control of an infected system. Genshin Impact's kernel anticheat is famously targeted by ransomware as an easier way to gain control of user's PCs for example. They also don't work on Linux, which is an obvious problem for Steam Deck users.
Companies need to stop with this shit already. Although, I suspect some of the push towards kernel level anti-cheat actually has more to do with governments pushing for backdoor access to everything. Operating Systems have mostly shut them down, so now they may be turning to anti-cheat systems to weasel their way in there.
I don't find it surprising that several of the main companies pushing for it (Riot and Mihoyo) are chinese owned. I don't have any faith that a Chinese owned country won't be required by the Chinese government to have some sort of backdoor in kernel anticheats.
Actually i've seen a lot of posts (mainly for competitive games) where people just don't want to buy a game without a kernel anti-cheat. Mainly care more about their games being fair than security.