The reason Helios pointed alone is enough to why we don't have a Play Store version anymore.
Also, even if a theoretical new Play Store publishing were made, limiting its availability only to 64-bit devices compatible with OpenGL ES 3.0 and running Android 5.0 or newer in an AARCH64 or x86_64 processor, that would still cover a lot of mid and low-range devices that would still be able to install Dolphin, which would still run bad (assuming it doesn't crash on launch due buggy GPU drivers), and the result would be the same as in the past: lots of 1-star ratings with nothing useful in their comments other than "it runs bad", "where can I download ISOs", etc.
In other words...
Also, even if a theoretical new Play Store publishing were made, limiting its availability only to 64-bit devices compatible with OpenGL ES 3.0 and running Android 5.0 or newer in an AARCH64 or x86_64 processor, that would still cover a lot of mid and low-range devices that would still be able to install Dolphin, which would still run bad (assuming it doesn't crash on launch due buggy GPU drivers), and the result would be the same as in the past: lots of 1-star ratings with nothing useful in their comments other than "it runs bad", "where can I download ISOs", etc.
In other words...
Avell A70 MOB: Core i7-11800H, GeForce RTX 3060, 16 GB DDR4-3200, Windows 11 (Insider Preview)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
