U can disable JavaScript entrely only in about:config otherwise use mix of ublock origin + umatrix

First of all u need to unlock bootloader it gonna 9 circles of hell then here is voltageos for ur phone https://github.com/alternoegraha/releases/releases/tag/voltage-3.4-fog-20240608-2239-UNOFFICIAL ur phone codename is fog if I did search correct. And here instruction installation https://4pda.to/forum/index.php?showtopic=1053816&st=460#entry119963542 This versions OS which I sent is non gsi so follow instruction from that branch