Yes, AMD Is Still Supporting Radeon RX 6000 And 5000 GPUs But With A Key Caveat

AMD moved it RDNA 1 and 2 Radeon RX 5000 and 6000 series GPUs to a maintenance-only driver branch, but clarified the move after some backlash.
TweakTown

AMD Software: Adrenalin Edition for Radeon GPUs just got it biggest update in years

TL;DR: AMD launched its RDNA 4 GPUs, the Radeon RX 9070 and RX 9070 XT, receiving positive reviews for performance and pricing. The release includes AMD Software: Adrenalin Edition 25.3.1, featuring ...
Ars Technica

AMD’s FSR 4 upscaling is exclusive to 90-series Radeon GPUs, won’t work on other cards

AMD’s new Radeon RX 90-series cards and the RDNA4 architecture make their official debut on March 5, and a new version of AMD’s FidelityFX Super Resolution (FSR) upscaling technology is coming along ...
Tom's Hardware on MSN

Linux gamers won't be affected by RX 5000/6000 series driver shift — AMD changes limited ...

Despite AMD putting RDNA 1 and RDNA 2 GPU drivers under maintenance mode, GPU driver support in Linux will remain unchanged.