Observant Jewish people never say the name of God even if they know how to pronounce it, as they don’t. YHVH has vowels added and is pronounced as Yahweh, Yahveh, or more commonly, Jehovah. They also use “Adoni” which means “LORD”.
To the point of your note regarding relief for Bagster, they frequently address God as “Ha-Shem”, which simply means, “The Name.”
Yahweh, Yahveh, Jehovah are never used by observant Jews. Never.
Even Adonai (itself a pronunciation stand-in for Y-H-V-H) is never pronounced outside of prayer or reading a Torah scroll. HaShem is its stand-in.
Similarly, when Elohim refers to God, it is pronounced Elokim outside of prayer or reading a Torah scroll.
YHVH (JHVH) - the Tetragrammaton - is always rendered in the King James Bible as LORD (all capitals, the 'L' one size larger). When reading Scripture (the Torah and Tanach) in services, the Tetragrammaton was pronounced as Adonai - Lord, since the secret 4 letter name was only pronounced once a year in the Holy of Holies at Yom Kippur - the Day of Atonement.
In the KJV, when the word 'Adonai' appears in the Hebrew text, it is always rendered 'Lord' - with only the 'L' capitalized. When the KJV reads 'lord' (all small letters), the Hebrew is ba'al, such as 'lord of the house.' Obviously it also duplicates the pagan god, Ba'al or ba'al.
As far as I know, when the King James scholars considered pronouncing the Tetragrammaton, they took the vowels from 'Adonai' and inserted them between the 4 consonants of the Tetragrammaton - somewhat roughly rendering the pronunciation 'Jehovah' - considering that the Hebrew 'vowels' were always a bit fluid. When the Tetragrammaton is rendered in the Masoretic text, with the vowel 'pointings' written underneath the four consonants, the pronunciation is still 'Jehovah' - given the 'J' instead of 'Y'. When the Tetragrammaton is rendered beginning with 'Y', the common fluid vowel assumptions apply - Yahweh, Yaveh.'
In common everyday speech the whole stew above is ignored and the Tetragrammaton is referred to as 'the Name' haShem or Ha-Shem. Of course 'Shem' is the name of one of Noah's sons, the patriarch of the line of Messiah - Jesus. Some ancient rabbinical scholars considered Noah's son Shem as Melchizedek - the King of Righteousness, also the king of what became Jerusalem.