Reposting this dating sites question since it got buried on the other board.
Anyone rushing you off-platform during plenty of fish is a bad sign every time. Bumble's desktop version is fully functional and syncs perfectly with the mobile app.
Whatever the guides claim, dating sites rewards consistency over cleverness. The subscription cost on most premium sites buys you things like read receipts and unlimited messaging.
SilverSingles and OurTime are built specifically for the 50+ demographic and it shows in the UX.
Update photos every few months if you're active on plenty of fish dating.
OkCupid
Match.com
eHarmony
Plenty of Fish