The two photos with leaves with many tiny spots look like it might indicate presence (or previous presence) of lace bugs.  This type of damage will not go away so it could have occurred last spring/summer.    Here is some information from the PNW Insect Management Handbook - https://pnwhandbooks.org/insect/hort/landscape/hosts-pests-landscape-plants/azalea-rhododendron-lace-bug-0    Take a look at the description to see if it matches what you are seeing.  Look for the tar spots on the leaf underside and crusty brown egg masses along leaf midribs.   If you see these crusty brown egg masses, remove the leaves and dispose in the trash.  Please note that stressed plants are most susceptible to damage so keep you shrubs watered and fertilized.    Also note that spraying leaf undersides with strong stream of water when pests are first noted can help reduce pest populations.    Many gardeners have had good luck with a hose attachment like the Bug Blaster (should be available at garden centers).  This also works with other soft-bodied insects like aphids.   There could also be some cold weather damage showing.

The other photo with brown tipped and brown edged leaves looks like damage from cold and/or insufficient water.   Ensure that the shrub receives sufficient water when rain doesn't provide enough. Rhododendrons are shallow-rooted so consider adding some mulch to help preserve water in the upper levels of the soil.

Thank you so much! Most helpful!! I will check zur leaves for eggs

You're welcome.