USAF's switch to improvised bases seems to be motivated by needing to operate from small islands in the Pacific where they isn't enough solid ground to build a full airbase.
But if they land on big well known bases, it's much simpler.
Another comment here about slow drone speeds and nest drones:
https://news.ycombinator.com/item?id=44918955
And sometimes the other side can destroy all big airbases in a small country.
Specifically, Swedish doctrine assumes all airfields are destroyed 24-48h after start of major conflict.
If operating from an airfield that has been improvised out of a straight stretch of highway, the grouping of vehicles that contain all of the necessary ground support equipment and munitions resupply can be disguised to resemble an ordinary civilian cargo box truck, or tractor trailer combo.
Unless the attacking force is willing to begin with the resources needed, and repercussions of airstriking everything that looks like a civilian cargo truck moving in the region, it would be extremely difficult to eliminate the group of vehicle and men that compromise the ground support equipment element. Particularly when you might have multiple groups of such roaming randomly around an area.
They are all parked individually at separate locations kilometers away from the road landing strip.
When the plane comes in for landing, they (3-5 pickup trucks and a tiny tanker) all scramble and meet up when the plane touches down. Refuel and rearm in 10 minutes, drive away again.
I've seen this done with my own eyes, it's very impressive.
However, revisit times are still long enough that sibling comment's remarks on mobility make sense.
I would bet that within a year we'll see ransom attacks on airfields in open societies. The idea is out there and the capabilities are so cheap that any idiot could do it.
The schedules, radar frequencies, etc. of those commercial satellites are all public knowledge.
(Based on timestamps) your reference is to user cutemonster's comment. Yep - "move immediately after the satellite passes" is a game that children can master. I would put a bit more weight on user walrus01's (later) sibling comment - on the problem of distinguishing small, pop-up air bases from routine civilian activities.
Also, I suspect that very few of those commercial satellite radars have much resilience in the face of jamming. That is expensive and security-sensitive tech on the satellite operator's end, of minimal use to most users of the satellites' services. Vs. in a war zone, the diplomatic consequences of using cheap (relative to getting hit) ECM against surveillance satellites will usually be the lesser evil.