Fx begone mod works best, lets you control which glitch effects to remove while keeping other visuals intact. Just drop files into archive\pc\mod folder but maybe backup your saves first since mods can get finnicky with patches. If you want something simple, glitch begone specifically targets those annoying relic effects from 2.0, pretty straightforward install really. The official 2.01 patch helped with some triggers like during automatic love, and console players have a few tricks like finishing brendan or panam quests to clear it up. Good to know the mods stay updated for phantom liberty but official patches are always safest if youre worried about stability

If modding isnt your thing, completing queen of the highway usually sorts it out naturally just make sure to save before trying anything major