The shipping delays are minor so far, ships are avoiding certain areas and this causes some minor delays only.
You mentioned a couple companies, but forgot to mention the location of their production base. It's spelled SHYNA for most of them. Also a few very chip dependent companies you didn't mention like Tesla, BYD, Foxconn etc with production almost exclusively in China each of whom will be crippled by a ship blockade that affects chips(I had to).
Related to this;
China's property sector is currently in freefall because individuals and companies have been buying apartements and buildings speculatively for years, with slightly different mechanisms and rules but seemingly they saw the 2008 financial crisis in the US and have been trying to replicate it. This is the valuation of bonds of a few of their multi-billion dollar, in a few cases hundreds of billion dollar market cap real estate companies in China:
https://imgur.com/a/lSuTpZG
This is the yield of chinese junk bonds(mostly related to real estate investment):
https://i.imgur.com/NU0TLxC.png
Institutions hold these notes, mostly banks. You remember 2008? Remember all the talk of glass-stegal and the separation of investment banking and commercial banking? Well China has more or less plagiarized your economy pre-2008. The regular commercial banks people think their money was safe in acted as investment bank and held these bonds in these real estate firms and everything was fine and dandy when the real estate prices were rising. They are not anymore tho.
As a result it's banking sector is facing a bank run and potential collapse of some large regional banks for starters. China is attempting to solve this by refusing withdrawals from many large banks and violently attacking people who protest it. People have responded by trying to refuse to pay their mortages en masse in several regions. Maybe authoritarianism is great for avoiding a total financial crisis? They do however have most of the ingredients needed to create one.
If China wants to set fire to the world economy right now, this will annihilate the only part of the chinese economy that has been doing decently well lately; chinese manufacturing. Sure we will burn as well, but they will burn first and the most painfully.
This is why it is absolutely essential for Xi to avoid uncontrollable escalation right now. Yes, they will escalate in ways they can control perhaps, a show of force, some more sanctions but going further is very detrimental to China and Xi.
Does he know this? I very much hope so and I'm decently sure he does.