I think the answer to the first point is that match officials and players will have to arrive individually, ready and dressed in match attire.You've got considerations that are not related to players running around the pitch.
Enclosed changing spaces and shower facilities for pre and post game.
Cleaning of facilities that host multiple teams - morning and afternoon.
How physios deal with players injuries
Interesting to see that there is a Step 5 and 6 meeting taking place on June 19th, that may or may not provide extra clarity, however I can't see fitness tests and friendlies in England prior to September, heck teams can't even get together and train properly yet.
An interesting one is payment of match fee. Will that be electronic, instead. If we follow a similar approach to Santa posted.
No one at the game, no matchday revenue, who pays players and match officials With no gate or beer money coming in? Will CFAs. Step in for match officials and players have to play out of goodness of heart? Okay at step 6 maybe, 5, but step 4 upwards not so much, players travel very long distances etc.
If everybody arrives in gear then your second point is probably covered.
And for physios, it will only be as bad as players hugging each other at corners, maybe less so, they can wear a mask and gloves that can be changed between injuries and can sanitise in between as well.
Fair points and all need to be answered and probably more be for we can get back.