And there are still the logistics of contestants row and a number of games that either cant be played or must be modified. There are still lots of games that can be played via social distance rules but some just cant I dont think without being reworked. (3 Strikes and 10 Chances come to mind - they could be done but would need to be done differently.)
Those seem easy enough. For Three Strikes, contestant stands 6 feet away while the numbers are shown and put in bag. Once the balls are in and mixed up, Drew steps away and contestant draws one. You could have the contestant walk over and drop it in the slot if they are correct (or get the x). If they need remixing, the contestant steps back while Drew does that.
For 10 Chances the same idea. Drew steps up and reveals numbers. He steps back, contestant goes and writes choice. They step back while Drew comes up and pushes button (or, if easier have them push it on command, like Flip Flop). And repeat.
For bidding, simply remove one row of seats (if needed) and put up walls between spots (like Jeopardy does for final, but a bit larger and clear, since you're not trying to hide anything).
That way, contestants are separated without being a set distance apart. The couple seconds waking from the spot to the stage is no more an issue than two people passing in a store aisle (which happens all the time, one way or not) - the seat removal is only if needed to allow space to walk behind others with these dividing walls in place.
And at the end of the day, if you tell people not to do something (like the high fives or hugs) and they still do, that's their problem and not the show's (just like any of the other rules created during this that people sometimes don't follow).