Oke oke online warrior, looking through your post history it actually looks like posting a specific viewpoint is your job, hope your at least getting paid!

And i never asked you to.

Im saying that the posted sources are crap, please supply us a proper one. Not saying anything about the content.

Right wing tabloid and murdoch paper paywalled. What is this crap.

Nope, it is not significant. The only thing that really stands out is the runout sensor with loading function function that is sold for 2.0, if you dont need that, print ninjaflex 24/7 and your 1.5 has no direct issues there is no need to upgrade.

Nuke the yi peng or something like that

If those 2 are from the same job its either a sagging gantry on an ender or the bed/mesh is not tilted properly or not meshed/leveled properly. Check squareness and sagging gantry, then check mesh/level after.

Iwbtg and all its successors and fan projects

Literally written by someone with a dissociative identity disorder well well

What a Google licking piece of "journalism" without any information whatsoever

Im using a filament fuser 3d printed. Try looking for filament fuser/welder/connector on thingi or any other page. There are also professional solutions on the market but diy cheap printed thing works flawlessly for me.

I simply attach it to other filament leftovers and print stuff with it where color does not matter.