Android is not removing standard ADB. Samsung, Google and Android researchers are making separate changes to recovery, sideloading and loopback ADB that affect power users differently.

Nowadays, smartphones are often not discarded due to hardware failure. It is frequently the lack of software support that forces users to buy a new one: after a few years, major Android updates cease, ...

Google has patched an Android ADB bug in the May security patch set. If you have a Pixel phone you should already have the patches, and most other major manufacturers should be close behind.