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@user69121
If it's a double glazed unit, I'd er on the side of disturb it as little as possible unless you can see a problem with water ingress or very perished seals. Removing retaining beads/seals just to check, may cause more harm than good.
If a DGU has been clamped in a frame for years, releasing the clamping pressure can allow the glass to separate from the spacer. Moist air to gets pulled in to the cavity, as the glass warms and cools. Then condensation between the panes starts to accumulate once the desiccant becomes saturated.
If there are gaps in the corners up to 30-40mm, where the external glazing seals are, a bit of additional sealant will prevent excessive amounts of water getting down into the drainage system. Use a glazing safe sealant (or find a wedge gasket that fits)
https://www.dortechdirect.co.uk/soudal-silirub-n-neutral-cure-building-silicone.html