>It's sad because a company that played a meaningful role for people and other companies is dying and being sold for parts, but it's the cycle of life – not every company is meant to endure indefinitely.
It's also worth noting that Instant Pot, Pyrex, etc. will almost certainly be back.
Freedom Group's well-deserved bankruptcy (its PE-induced enshittification began in the mid-2000s with Cerberus Capital Group) and subsequent sale of Remington, Marlin, Bushmaster, etc. to other manufacturers in no way suggests their products were not financially viable, which is why the companies that acquired them are still making said products.
Interestingly, just like Pyrex, these companies all face stiff competition from products they made more than a century ago that are still as capable as the day they were made. It's a tough go when you make products that last that long and where the market is already saturated with one's own products, and means that the industry isn't actually as large as their reputation would suggest (which is partially why we never see anything truly new from it- the other part is mostly just technological stagnation over those 100 years).
As far as other firms ruined by PE (for instance, Sears)... well, they won't be back mainly because the decline was slow enough, and competitors were present enough (Amazon, in Sears' case) to make the only valuable thing about the company the cultural cachet its name held 30+ years ago.