The numbers I saw for tinder are about 2:1 men:women. But how is this manifest as a problem? Men are typically the ones initiating advances regardless of online or offline, so I would expect to see higher participation rates in both spaces with relatively lower success rates compared to women.
To "fix" this, is something requiring gender parity in selection agency/opportunity. This is far beyond an online dating thing and requires deep societal changes. Even though Bumble has taken some steps to change the initiation process and still have a similar ratio.