Would it be possible to add a "lock tab position" setting that would block tab movement?

I have set positions for my tabs so I can go to them without thinking.  This is spoiled by the fact that tabs are constantly drifting up and down and have to be manually adjusted several times a day.

I brought this up in March but it's been going on for years.  You said you've never seen it so I understand you can't directly "fix" it but is there an alternative way to stop the constant movement?