As usual, this may depend on the specific circumstances of each case.
If you have any reason to expect a challenge to the will, should you not supply full details - whether to a named beneficiary or not - or face a caveat and/or possible Larke v Nugent claim, in either case with a risk of costs penalties?
Similarly, if your firm/partners are Executor, full disclosure may be required in order to give full costs information, at least to the residuary legatees [assuming the estate is solvent, otherwise to whoever will effectively be funding your fees].
In the last century, [not that long ago to some of us] the “Agatha Christie” style of reading a will after a funeral simply did not happen - if only because the solicitor was no longer the “man of business” with full knowledge of all assets and liabilities. For the same reason I would not routinely notify pecuniary legatees of their “windfall” until I was in a position to make payment - ie after the grant, and assets confirmed, and statutory notices have expired.
So Evelyn, I would be unlikely to produce a will to any but the RLs, whether redacted or not; but welcome thoughts from those in the 21st century.