I cannot recall an incident of being on a false glide slope.
Above the glide slopè, that is. Many years, many countries.
One thing I always did, was to maintain a "normal profile" for descent.
That is to be at some 10,000' some 30 NM away from runway, at 250 KIAS...
To be at 6,000' some 20 NM away, start flaps, and be 3,000' some 6 NM away.
Then follow the glide slope, and x-check altitude at the OM or FAF.
And see that all that does not bring you below terrain.
No need to fly acrobatics to get to a glide slope.
xxx
I can recall intercepting GS for LAX 24R/25R some 70-80 NM out (profile).
However would first maintain the profile with my distance/height rule above.
Glide slope itself...? Would wait until some 10 DME to ARM the GS.
Looks like I did ok... Now retired and safely in my rocking chair...
xxx
Happy contrails