NGL it's comical how poor the army is compared to both of the other branches, by 2016 the PLAAF already had proper world class jets but it took until the mid 2020s for the PLAGF to finally look like a proper modern army, and they still don't issue ear pro as much as they should be.
If you think they are comical, dig a bit deeper (not specifically PLA) and look at what constitute standard issue for 2nd line and rear echelon units.
Within the tri-services, the Air Force is always going to eat up the biggest share of the tech dollar budget. If you are a maritime nation, your Navy will likewise have heavy(ier) weightage. What remains then for Land forces?
For Land forces, if you believe you are going to fight a conventional war, your multipliers will take priority - artillery, AFVs, etc - not your infantry. The Mark I Trooper, generic infantry, grunt is almost always gonna be low on the priority list. Not because the queen of the battlefield isn't important but more because the infantryman in itself doesn't really form the tip of the spear (outside of a few niche scenarios). It's only if you restructure your land forces for asymmetric warfare that the lowly grunt will start to see a bigger share of the budget pie.
Stop comparing them to other militaries. It's a fraught comparison because different tiers of troops have different gearing levels. Oversea deployed units, flashy joint exercise troops can be quite over-kitted compared to even regular line troops, let alone rear area troops. As mentioned by others, more liberal cultures within an armed force can allow personal supplementation of gear which allows a GI to kit up over and above standard issue - a pitfall for like-for-like comparison if you think that everything that hangs off a marine is standard issue.
It's always silly to compare items from different militaries as if they are all meant to perform the same role/function. Focus more instead of whether the equipment fits the role within the CONOPS for that particular platform in the PLA.
If you can point out how the PLA infantryman is unable to perform their role with the budget constrained equipment level they have, then we have a discussion. If not, then all anyone has is a wishlist.