No, I think you’ll find certain legacy corporations have terrible codebases and very little incentive to fix it, because why fix what makes money and has no liability?
Naive people in corporations think Linux and other FOSS (Free & Open Source Software) can save them from Microsoft, Oracle, etc. woes.
But the reality is that corporates have very less incentive to migrate to open-source alternatives. Because it would mean negligible/no support, less work and hence less staffing (senior management have to justify the staffing headcount somehow).
FOSS solutions typically don't get proper (or in some cases, not even any) support from the solution makers (developer company/persons).
Corporates thrive internally on liability (they always want to blame someone, easiest target are their IT staff), and thrive externally by trying to avoid liability.
e.g., Big Pharma (Pfizer, sold hundreds of millions of COVID vaccines worldwide, after ensuring those target countries (including their own country) first gave them complete indemnity from any liability for the negative effects or lack of efficacy of the vaccines.
