If it helps validate you at all... I've had a HomePod mini for several years now. Used to think it was great. Since 18.0 dropped though, it's become absolute trash. Last night I finally unplugged it and tossed it in the tech graveyard. Totally useless unless you want music to play randomly and unprompted + want Siri to respond there even if you're on the opposite end of the house where you can't hear.
And the 18.4.1 update improved things exactly 0%, by the way. Stabilitv improvements I'll believe. Stability improvements I don't buy for a second.