+/- support
Im kinda split on this one. Although i agree with shotgun meta being fairly boring, it comes with the map. We are talking about a map which mainly consists of tight hallways with plenty of turns and doors that makes it sure that nearly all of the firefights happen within 15m and a lot of those engagements are within 5m (conveniently pretty much the perfect environment for shotguns). I would say that the map change somewhat helped with said issue with introducing longer sightlines within the foundation, but you can just straight up negate said problems with either someone suppressing your opponent or just by whipping out the riot shield and closing the distance without any kind of danger to you.
From what i seen people using shotguns either stand back or switch to and ar, sniper or and smg if the firefight is happening outside of 25m (assuming hard pushing is not an option), because using a shotgun becomes impractical with only 1-3 pellet hitting their opponent. This in my opinion is good, shotguns should absolutely dominate cqc and become subpar to other weapons on larger ranges, and this is already present ingame. I think shotguns doesn't need to get their dmg and spread nerfed unless we want shotguns only used in melee range. On the other hand their recoil should absolutely be nerfed, its basically non-existent right now
Generally speaking the damage, accuracy and recoil changes on ARs, SMGs and LMGs are great and well needed those weapons classes to be more viable. Currently the spread and the recoil is ridiculous for most of these weapons to the point where they barely perform better than shotguns on the roles they supposed completely outperform them. I don't blame people for tossing their weapons away for a shotgun or a sniper rifle, at least those two kind of weapons do their role properly.
A bit of a pet peeve of mine here is some of the stats such as the 9x19mm luger doing the same dmg as the honey badger's .300 blackout and some of the 5.56x45mm weapons or the as val's 9x39mm does less dmg than the pp bizon's 9x18mm. Same with the recoil we would have things like the ak-74 having more recoil than the m16a3, or the as val having more recoil with 9x39mm than the scar-h and the fn fal with their 7.62x51mm.
TL;DR: ar,smg,lmg change good, shotgun change bad.