NASA's Mars rovers use several orbital probes to relay communications back to Earth. They do have radios that can talk directly to Earth up to 32kbps but primarily use the relays. The UHF uplink to the Mars Recon Orbiter is up to 2Mbps and it's visible to the rover for about eight minutes a day. The orbiter's uplink to Earth is can hit up to 6Mbps.
The Curiosity and Perseverance rovers have a fair amount of on-board storage (for an interplanetary probe). So they can spool a lot of data and then send a batch to the orbiters and then go about their next tasks. The orbiters also have a lot of storage (for interplanetary probes) and can themselves spool a lot of data until they're in a transmit window to Earth.
The Mars rovers aren't doing OnlyFans livestreams. They've got science data to upload and can empty their spool in the time the orbiters are in range. They also have their direct uplinks to Earth at up to 32kbps for control and telemetry.
The Curiosity and Perseverance rovers have a fair amount of on-board storage (for an interplanetary probe). So they can spool a lot of data and then send a batch to the orbiters and then go about their next tasks. The orbiters also have a lot of storage (for interplanetary probes) and can themselves spool a lot of data until they're in a transmit window to Earth.