[2021] Did the hotfix actually fix matchmaking?

I solo queued a few ranked dominion games last night in "prime-time" and still didn't have one full lobby. All lobbies started 6 or 8. Playing on PC, servers rotated games between NAE and NAW, I'm in low-mid silver.

Did the hotfix actually help soloq matchmaking or do I still have to look for a group if I want full games? I haven't seen any info on what was actually done to address that issue, the patch notes were very vague on it.

Interested if others are experience the same thing.

On an unrelated topic, the stuttering near/in a cap zone seems to have only gotten worse. It's pretty frustrating.